Common WordPress Errors Every Website Owner Should Know

March 27, 2026

WordPress powers over 40% of the internet. It is a powerful platform, but it comes with its own set of challenges. Even experienced website owners run into technical issues from time to time. Knowing how to identify and fix these problems can save you hours of frustration.

Common WordPress Errors can affect your website's performance, security, and user experience. Some errors appear without warning. Others show up after an update or a plugin conflict. Either way, they can disrupt your site and drive visitors away. This guide breaks down the most frequent issues WordPress users face. You will learn what causes them and how to fix them quickly. Whether you are a beginner or a seasoned developer, understanding these errors is essential. It helps you keep your site running smoothly.

Being prepared makes a big difference. You do not need to be a tech expert to handle most WordPress issues. With the right knowledge, you can troubleshoot problems confidently and get your website back on track fast.

Common WordPress Errors A Website Owner Needs to Know

WordPress is reliable, but even well-maintained sites run into issues. Here are the most common WordPress errors you're likely to encounter and what they mean.

White Screen of Death

The White Screen of Death is one of the most common WordPress errors. Your site goes completely blank. No error message. No clue. Just white.

What Causes It?

WordPress's White Screen of Death typically stems from a handful of common culprits: insufficient PHP memory allocation, plugin conflicts (especially after updates), broken or manually edited theme files, interrupted core updates that corrupt essential files, or a mismatch between your hosting environment's PHP version and the requirements of your theme or plugins. In each case, the result is the same, a blank, unresponsive page that blocks access to both the frontend and dashboard.

Plugin conflicts (especially after updates) are one of the most common causes of this issue. Using only Must Use WordPress Plugins that are regularly updated and well-maintained can significantly reduce the chances of conflicts breaking your site.

How to Fix It:

Step 1 - Increase PHP Memory Limit

Open your wp-config.php file. Add this line:

define('WP_MEMORY_LIMIT', '256M');

Save the file. Reload your site.

Step 2 - Deactivate All Plugins

Access your server via FTP. Navigate to wp-content/plugins. Rename the plugins folder to plugins_old. This deactivates everything at once. Check if your site loads.

Step 3 - Switch to a Default Theme

Go to wp-content/themes via FTP. Rename your active theme folder. WordPress will fall back to a default theme. Check if the white screen clears.

Step 4 - Enable Debug Mode

Open wp-config.php. Add these lines:

define('WP_DEBUG', true);
define('WP_DEBUG_LOG', true);
define('WP_DEBUG_DISPLAY', false);

Check the wp-content/debug.log file. It will show the exact error.

Step 5 - Check File Permissions

Wrong permissions can cause a blank screen. WordPress core files should be set to 644. Directories should be set to 755.

Error Establishing a Database Connection

The Error Establishing a Database Connection is one of the most common WordPress errors. It displays a simple but alarming message. Your entire site goes offline instantly. Visitors see nothing but the error text.

What Causes It?

The "Error Establishing a Database Connection" message can be triggered by several underlying issues: incorrect database credentials stored in wp-config.php, a corrupted or improperly edited wp-config.php file, or corrupted database tables resulting from a server crash or failed update. The error can also occur when your hosting provider's database server goes temporarily offline, when a hosting plan's storage limit is reached, or when high traffic exhausts the maximum number of allowed database connections. In some cases, malware or a hack attempt may be the culprit, either by altering credentials or directly damaging database tables.

How to Fix It

Step 1 - Check Your Database Credentials

Open your wp-config.php file via FTP. Look for these four lines:

define('DB_NAME', 'your_database_name');
define('DB_USER', 'your_database_user');
define('DB_PASSWORD', 'your_database_password');
define('DB_HOST', 'localhost');

Log in to your hosting control panel. Go to your database settings. Compare each value carefully. Correct any mismatches. Save the file and reload your site.

Step 2 - Check if the Database Server is Running

Log in to your hosting control panel. Look for your MySQL database status. If it shows as offline, contact your host immediately. This is a server-side issue. Only your host can resolve it.

Step 3 - Repair the Database

Open your wp-config.php file. Add this line just above the /* That's all, stop editing! */ comment:

define('WP_ALLOW_REPAIR', true);

Visit this URL in your browser:

https://yoursite.com/wp-admin/maint/repair.php

Click Repair Database. Wait for the process to finish. Remove the line you added from wp-config.php immediately after.

Step 4 - Repair Tables via phpMyAdmin

Log in to your hosting control panel. Open phpMyAdmin. Select your WordPress database. Click Check All to select all tables. From the dropdown menu, choose Repair Table. This fixes corrupted table structures directly.

Step 5 - Check Database User Privileges

Log in to your hosting control panel. Go to your database user settings. Make sure your database user has full privileges. Required privileges include SELECT, INSERT, UPDATE, DELETE, CREATE, and ALTER. Assign any missing privileges and save.

404 Not Found

The 404 Not Found Error is one of the most frequently encountered common WordPress errors. It tells visitors that a page cannot be found. The content may actually exist on your server. But WordPress simply cannot locate it.

What Causes It?

WordPress 404 errors is one of the most common WordPress Errors on pages and posts are most commonly caused by a broken permalink structure or a corrupted/missing .htaccess file, both of which prevent WordPress from correctly mapping URLs to content. Changing your permalink settings can also invalidate old URLs instantly, leaving visitors and search engines with dead links. Other frequent causes include deleted or unpublished content where the URL persists but the page is gone, mismatched WordPress Address or Site Address settings, plugin or theme conflicts that interfere with URL routing, and server misconfigurations such as a disabled mod_rewrite module. In some cases, the cause is as simple as a manual typo in the URL or an outdated link from an external site.

How to Fix It

Step 1 - Refresh Your Permalink Settings

Log in to your WordPress dashboard. Go to Settings → Permalinks. Do not change anything. Simply click Save Changes. This flushes rewrite rules and rebuilds your .htaccess file. This single step fixes most 404 errors. If URLs have changed after updating permalink settings, you may also need to perform a Search and Replace in WordPress to update outdated internal links that still point to old page addresses.

Step 2 - Fix the .htaccess File

Connect to your server via FTP. Navigate to your WordPress root folder. Look for the .htaccess file. If it is missing, create a new one. Add this default WordPress content:

# BEGIN WordPress
<IfModule mod_rewrite.c>
RewriteEngine On
RewriteBase /
RewriteRule ^index\.php$ - [L]
RewriteCond %{REQUEST_FILENAME} !-f
RewriteCond %{REQUEST_FILENAME} !-d
RewriteRule . /index.php [L]
</IfModule>
# END WordPress

Save the file. Reload your site and test.

Step 3 - Check WordPress URL Settings

Log in to your dashboard. Go to Settings → General. Check the WordPress Address (URL) and Site Address (URL) fields. Both should match your actual domain exactly. Correct any mismatches. Save your changes.

Step 4 - Enable mod_rewrite on Your Server

Contact your hosting provider. Ask them to confirm that mod_rewrite is enabled. If you manage your own server, enable it with this command:

sudo a2enmod rewrite
sudo systemctl restart apache2

Then reload your permalink settings in WordPress.

Step 5 - Restore Deleted Content

Log in to your WordPress dashboard. Go to Posts or Pages. Click on Trash at the top of the list. Find the missing content. Click Restore. The original URL will work again immediately.

500 Internal Server Error

The 500 Internal Server Error is one of the most common WordPress errors. It gives no specific explanation. Your site becomes completely inaccessible. Both visitors and administrators are locked out.

What Causes It?

A 500 Internal Server Error in WordPress can arise from a range of server-side issues, with a corrupted or misconfigured .htaccess file being the most common trigger. Other frequent causes include exhausted PHP memory or execution time limits, plugin or theme conflicts (particularly following an install or update), corrupted core files from a failed update, and incorrect file or folder permissions that block the server from reading essential data. PHP version incompatibility between your server environment and your plugins or themes can also produce fatal execution errors, as can a failing third-party script embedded in your site that causes the server to hang while waiting for a response.

How to Fix It

To fix this one of the most common WordPress errors, here are some of the right solutions:

Step 1 - Fix the .htaccess File

Connect to your server via FTP. Go to your WordPress root directory. Find the .htaccess file. Rename it to .htaccess_old. Visit your site. If it loads, the file was corrupted. Go to Settings → Permalinks in your dashboard. Click Save Changes. WordPress will generate a clean .htaccess file automatically.

Step 2 - Increase PHP Memory Limit

Open your wp-config.php file via FTP. Add this line before the final comment:

define('WP_MEMORY_LIMIT', '256M');

Save the file. Reload your site. Check if the error is gone.

Step 3 - Deactivate All Plugins

Connect to your server via FTP. Navigate to wp-content/plugins. Rename the folder to plugins_old. This deactivates all plugins instantly. Check if your site loads. If it does, rename the folder back to plugins. Reactivate each plugin one by one. Identify the one causing the error.

Step 4 - Switch to a Default Theme

Open your FTP client. Go to wp-content/themes. Rename your active theme folder. WordPress will automatically fall back to a default theme. Check if the 500 error disappears. If it does, your theme is the problem.

403 Forbidden

The 403 Forbidden Error is one of the most misunderstood common WordPress errors. It does not mean the page is missing. It means access is being deliberately blocked. Your server understands the request but refuses to fulfill it.

What Causes It?

A 403 Forbidden error in WordPress is most commonly triggered by incorrect file or folder permissions, or a corrupted .htaccess file containing faulty access rules. Security plugins can also be a culprit, occasionally flagging legitimate users as threats and blocking access without warning. Other causes include hotlink protection enabled at the hosting level, IP addresses blocked via a security plugin or .htaccess rule, malware altering permissions or injecting blocking rules, incorrect file ownership preventing the server from executing files, a missing index file in a directory, and ModSecurity firewall rules interfering with normal WordPress requests.

How to Fix It

Step 1 - Fix File Permissions

Connect to your server via FTP. Select all files in your WordPress root folder. Set file permissions to 644. Set folder permissions to 755. Pay special attention to these specific files and their correct permissions.

Save changes. Reload your site and test access.

Step 2 - Fix the .htaccess File

To fix this one of the most common WordPress Errors, Connect to your server via FTP. Navigate to your WordPress root directory. Find the .htaccess file. Rename it to .htaccess_old. Visit your site. If it loads, the file was the problem. Go to Settings → Permalinks in your dashboard. Click Save Changes. WordPress will create a fresh .htaccess file automatically.

Step 3 - Deactivate Your Security Plugin

Log in to your WordPress dashboard. Go to Plugins → Installed Plugins. Deactivate your active security plugin. Check if the 403 error disappears. If it does, the security plugin was blocking access. Reconfigure its settings carefully. Whitelist your own IP address if needed.

Step 4 - Check for IP Blocking

Open your .htaccess file via FTP. Look for lines like these:

deny from 123.456.789

order deny, allow

deny from all

These lines block specific or all IP addresses. Remove any incorrect blocking rules. Save the file. Test access again immediately.

Step 5 - Disable Hotlink Protection

Log in to your hosting control panel. Look for the Hotlink Protection setting. It is usually found under the Security section. Disable it temporarily. Check if the 403 error resolves. If it does, reconfigure hotlink protection more carefully.

Step 6 - Check ModSecurity Settings

Log in to your hosting control panel. Look for the ModSecurity setting. Try disabling it temporarily. Check if the error goes away. If it does, contact your hosting provider. Ask them to whitelist your site or adjust the firewall rules.

Connection Timed Out

The Connection Timed Out Error is one of the most common WordPress errors. It means your server took too long to respond. The browser gave up waiting. Your site becomes completely unreachable as a result.

What Causes It?

Connection timeout errors in WordPress typically occur when the server cannot process and respond to a request within the allowed time limit. Common causes include insufficient server resources on underpowered or oversold hosting plans, low PHP memory or execution time limits that cut scripts off mid-process, and too many active plugins or poorly coded plugins and themes that generate slow, inefficient database queries. An unoptimized, bloated database compounds these issues by slowing down every query. External factors can also be responsible, such as a sudden traffic spike or DDoS attack overwhelming shared server resources, or a slow and unresponsive external API stalling the page load while the server waits for a response.

How to Fix It

Step 1 - Increase PHP Memory Limit

Open your wp-config.php file via FTP. Add this line before the final comment:

define('WP_MEMORY_LIMIT', '256M');

Save the file. Reload your site. Check if the timeout clears.

Step 2 - Increase PHP Execution Time

Open your php.ini file on your server. Add or update this line:

max_execution_time = 300

Save the file. Test your site immediately after.

Step 3 - Deactivate All Plugins

Connect to your server via FTP. Navigate to wp-content/plugins. Rename the folder to plugins_old. Check if your site loads. If it does, rename the folder back to plugins. Reactivate each plugin one by one. Identify the slow or conflicting plugin.

Step 4 - Switch to a Default Theme

Open your FTP client. Go to wp-content/themes. Rename your active theme folder. WordPress will fall back to a default theme. Check if the timeout error disappears. If it does, your theme is causing excessive load.

Step 5 - Optimize Your Database

Install a plugin like WP-Optimise or Advanced Database Cleaner. Run a full database cleanup. Remove post revisions, spam comments, and transient options. A leaner database responds much faster. Schedule regular automatic cleanups going forward. Performance problems can also be improved by using Best WordPress Cache Plugins, which reduce server load by storing static versions of your pages and speeding up page delivery.

Too Many Redirects

The Too Many Redirects Error is one of the most confusing common WordPress errors. It is also known as ERR_TOO_MANY_REDIRECTS. Your browser gets stuck in an endless loop. It keeps bouncing between redirects and never lands on a page.

What Causes It?

Redirect loops in WordPress occur when the server becomes trapped between conflicting instructions and cannot reach a final destination. The most common triggers include mismatched WordPress Address and Site Address settings, misconfigured SSL certificates causing HTTP and HTTPS to redirect back and forth, and contradictory redirect rules between plugins, .htaccess entries, or CDN and reverse proxy configurations. Duplicate SSL enforcement, such as a hosting panel's Force SSL option clashing with a WordPress SSL plugin, creates the same problem. Plugin conflicts where multiple plugins manage redirects simultaneously, incorrect .htaccess syntax, and cached redirects stored in the browser or server can also sustain or disguise the loop even after the root cause has been resolved.

How to Fix It

Step 1 - Clear Your Browser Cache

Start with the simplest fix first. Open your browser settings. Find the option to clear browsing data. Clear cached files and cookies completely. Close and reopen your browser. Try visiting your site again. Also clear your WordPress cache if you use a caching plugin. Go to your caching plugin settings. Click the option to purge or clear all cache. Reload your site and test.

Step 2 - Fix WordPress URL Settings via wp-config.php

Connect to your server via FTP. Open your wp-config.php file. Add these two lines before the final comment:

define('WP_HOME', 'https://yourdomain.com');
define('WP_SITEURL', 'https://yourdomain.com');

Replace the URL with your actual domain. Save the file. Reload your site immediately.

Step 3 - Fix the .htaccess File

Connect to your server via FTP. Navigate to your WordPress root folder. Open your .htaccess file. Look for any conflicting or duplicate redirect rules. Remove any manually added rules that conflict with WordPress defaults. Replace the entire file content with the standard WordPress rules:

# BEGIN WordPress
<IfModule mod_rewrite.c>
RewriteEngine On
RewriteBase /
RewriteRule ^index\.php$ - [L]
RewriteCond %{REQUEST_FILENAME} !-f
RewriteCond %{REQUEST_FILENAME} !-d
RewriteRule . /index.php [L]
</IfModule>
# END WordPress

Save the file. Test your site right away.

Step 4 - Deactivate All Plugins

Connect to your server via FTP. Go to wp-content/plugins. Rename the folder to plugins_old. This deactivates every plugin instantly. Check if the redirect loop is gone. If it is, rename the folder back to plugins. Reactivate each plugin one by one. Identify the conflicting plugin.

Step 5 - Fix SSL Configuration

An SSL misconfiguration is a very common cause. Check these settings carefully.

First, confirm your SSL certificate is active. Log in to your hosting control panel. Verify the SSL certificate status for your domain. Next, check your WordPress SSL plugin settings. Make sure it is not conflicting with your host's Force SSL option. Disable one of them to eliminate the duplication. Regular monitoring and proper configuration checks are part of good WordPress Maintenance Tips that help prevent redirect loops and other configuration related issues.

Syntax Error

The Syntax Error is one of the most precise common WordPress errors. It points to a specific problem in your code. A single misplaced character breaks your entire site. WordPress cannot execute the file and stops completely.

What Causes It?

A PHP syntax error in WordPress is almost always the result of a small but critical mistake in code. Common culprits include missing semicolons, unclosed brackets or parentheses, mismatched or incorrect quotation marks, and missing or extra curly braces that cause the PHP parser to lose track of the code structure. Errors frequently occur when editing theme or plugin files directly in WordPress without any syntax checking, or when pasting incomplete code snippets or external code containing hidden characters such as smart quotes from word processors. Incorrect function calls, wrong or missing PHP opening tags, and PHP version incompatibility, where deprecated or unsupported syntax is run on the wrong server environment, can all trigger the same result: the entire script fails to execute.

How to Fix It

Step 1 - Locate the Error File and Line

Read the error message on your screen. Note the file path and line number. This is your starting point. Go directly to that file. Do not guess or search randomly.

Step 2 - Access the File via FTP

Connect to your server using an FTP client like FileZilla. Navigate to the file mentioned in the error. Download a copy to your computer. Open it in a code editor like Visual Studio Code or Notepad++. These editors highlight syntax errors automatically.

Step 3 - Go to the Exact Line Number

Open the downloaded file in your code editor. Press Ctrl+G or Cmd+G to jump to a specific line. Go to the line number shown in the error message. Examine that line and the lines immediately around it.

Step 5 - Upload the Fixed File

Upload the corrected file back to your server via FTP. Choose to overwrite the existing file when prompted. Reload your site in the browser. Check if the syntax error is gone.

WordPress Stuck in Maintenance Mode

The WordPress Stuck in Maintenance Mode Error is one of the most easily fixable common WordPress errors. It displays a simple message on your site. The message reads "Briefly unavailable for scheduled maintenance. Check back in a minute." Your entire site becomes inaccessible to visitors.

What Causes It?

WordPress gets stuck in maintenance mode when the .maintenance file created at the start of an update process is never deleted upon completion. This typically happens when the update is interrupted midway, due to a closed browser tab, a lost internet connection, a server timeout, or exhausted PHP memory, before WordPress has the chance to clean up after itself. Running multiple plugin updates simultaneously can overload the server and cause one or more to fail mid-process, while a conflicting plugin or an underpowered hosting server that times out during large updates can produce the same result, leaving the maintenance file in place and the site inaccessible to visitors.

How to Fix It

Step 1 - Delete the .maintenance File via FTP

This is the fastest and most direct fix. Connect to your server using an FTP client like FileZilla. Navigate to your WordPress root directory. This is the folder containing wp-config.php and wp-login.php. Look for a file named .maintenance. It may be hidden by default. Enable the option to show hidden files in your FTP client. Right-click the .maintenance file. Select Delete. Reload your site immediately. Maintenance mode will be gone instantly.

Step 2 - Delete the File via Hosting File Manager

You can also do this without an FTP client. Log in to your hosting control panel. Open the File Manager tool. Navigate to your WordPress root directory. Look for the .maintenance file. Enable the option to show hidden files if needed. Select the file and delete it. Reload your site to confirm the fix.

Step 3 - Show Hidden Files in Your FTP Client

The maintenance file starts with a dot. This makes it hidden by default on most servers. In FileZilla, go to Server → Force Showing Hidden Files. In other FTP clients, look for a similar option in View or Settings. Enable it before searching for the file.

Step 4 - Complete or Rerun the Interrupted Update

Deleting the maintenance file fixes the lockout. But the interrupted update may be incomplete. Log in to your WordPress dashboard after fixing maintenance mode. Go to Dashboard → Updates. Check if any updates are still pending. Rerun any incomplete updates one at a time.

Step 5 - Increase PHP Memory Limit

If memory caused the failed update, increase the limit. Open your wp-config.php file via FTP. Add this line before the final comment:

define('WP_MEMORY_LIMIT', '256M');

Save the file. Retry the update that originally failed.

General Troubleshooting Tips

General Troubleshooting Tips help fix issues on WordPress websites efficiently. These steps help diagnose many Common WordPress issues and are often the first actions developers take when troubleshooting a broken WordPress website.

Start by clearing your browser cache and refreshing the page. Many display problems are caused by old cached files.
Next, disable all plugins and check if the site works. If it does, reactivate plugins one by one to find the culprit. Switch to a default WordPress theme to see if your theme is causing the issue.
Also, increase the PHP memory limit in your hosting settings. Low memory often leads to errors. Enable WordPress debugging mode to see error messages. These messages help identify problems quickly.
Regularly update WordPress, themes, and plugins. Outdated software can cause many issues. Keep a backup before making changes to avoid data loss.

These General Troubleshooting Tips are useful for fixing Common WordPress Errors step by step and keeping your site stable.

Conclusion

Understanding and resolving common WordPress errors is an essential skill for every website owner. Errors like the White Screen of Death, 404 Not Found, and Database Connection failures can seem overwhelming at first. But every single one has a clear and proven solution. The key is staying calm and working methodically. Read every error message carefully. Make one change at a time. Always back up your site before attempting any fixes. Keep your plugins, themes, and WordPress core updated regularly. Websites built with modern and Creative WordPress Themes perform better, load faster, and reduce the chances of technical errors over time.. Use a staging environment to test changes safely. Monitor your site continuously so problems get caught early. Invest in quality managed WordPress hosting to reduce error frequency significantly. The more familiar you become with these errors, the faster you will resolve them. Every website owner encounters these challenges. With the right knowledge and a structured approach, your WordPress site will stay healthy, secure, and running smoothly at all times.

Frequently Asked Questions

Q1. What are the most common WordPress errors every website owner should know?
The most common WordPress errors include the White Screen of Death, 500 Internal Server Error, 403 Forbidden Error, 404 Not Found Error, Error Establishing a Database Connection, Too Many Redirects, Connection Timed Out, Syntax Error, and WordPress Stuck in Maintenance Mode. Each error has a specific cause and a clear solution.

Q2. Why does my WordPress site show a White Screen of Death?
The White Screen of Death usually happens due to a plugin conflict, theme failure, or exhausted PHP memory. It can also occur after a failed WordPress update. Start by increasing your PHP memory limit. Then deactivate all plugins via FTP. Switch to a default theme to isolate the cause.

Q3. How do I fix the Error Establishing a Database Connection in WordPress?
Start by checking your database credentials in wp-config.php. Make sure the database name, username, password, and host are all correct. Log in to your hosting control panel to confirm your database server is running. If credentials are correct, try repairing your database using the built-in WordPress repair tool.

Q4. What causes the 500 Internal Server Error in WordPress?
The 500 Internal Server Error is most commonly caused by a corrupted .htaccess file. It can also be triggered by plugin conflicts, theme issues, insufficient PHP memory, or corrupted core files. Start by renaming your .htaccess file. Then deactivate all plugins and switch to a default theme.

Q5. How do I fix the 404 Not Found Error in WordPress?
Go to Settings → Permalinks in your WordPress dashboard. Click Save Changes without modifying anything. This rebuilds your permalink structure and regenerates your .htaccess file. This single step resolves most 404 errors instantly.

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