WordPress is one of the most popular website platforms in the world, powering over 40% of all websites. But like any technology, it can run into problems. Whether you’re a beginner or an experienced user, encountering an error can be frustrating—especially if your website is live and your visitors can’t access it.

In this guide, we’ll walk you through the 10 most common WordPress errors and step-by-step solutions to fix them.

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1. White Screen of Death (WSoD)

Symptoms: A blank white screen with no error message.

Common Causes:

• PHP memory limit exhaustion
• Plugin or theme conflicts
• Syntax errors in code

How to Fix:

1. Increase PHP memory limit in wp-config.php.
2. Disable all plugins via FTP or File Manager, then reactivate one by one.
3. Switch to a default theme like Twenty Twenty-Four.
4. Enable debugging by adding define('WP_DEBUG', true); to wp-config.php.

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2. Error Establishing a Database Connection

Symptoms: A clear error message saying the site can’t connect to the database.

Common Causes:

• Incorrect database login credentials in wp-config.php
• Corrupted database
• Database server issues

How to Fix:

1. Check wp-config.php for correct DB name, username, password, and host.
2. Repair the database by adding define('WP_ALLOW_REPAIR', true); and visiting yoursite.com/wp-admin/maint/repair.php.
3. Contact your hosting provider to check for server issues.

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3. 404 Page Not Found

Symptoms: Pages return a 404 error despite existing in the admin panel.

Common Causes:

• Corrupted permalink settings
• Missing .htaccess file

How to Fix:

1. Go to Settings → Permalinks and click Save Changes.
2. If that doesn’t work, manually create or reset .htaccess with WordPress defaults.

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4. Internal Server Error (500)

Symptoms: Generic 500 error preventing the site from loading.

Common Causes:

• Corrupted .htaccess file
• PHP memory limit exceeded
• Faulty plugin or theme

How to Fix:

1. Rename .htaccess to .htaccess_old and reload your site.
2. Increase PHP memory limit.
3. Deactivate all plugins, then reactivate one by one.

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5. Stuck in Maintenance Mode

Symptoms: “Briefly unavailable for scheduled maintenance. Check back in a minute.” message that doesn’t go away.

Common Causes:

• Update interrupted due to timeout or server crash

How to Fix:

1. Connect to your site via FTP.
2. Delete the .maintenance file in the root directory.

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6. WordPress Login Redirect Loop

Symptoms: After logging in, you’re redirected back to the login page repeatedly.

Common Causes:

• Incorrect WordPress URL settings
• Corrupted .htaccess file
• Browser cache or cookies

How to Fix:

1. Clear your browser cache and cookies.
2. Ensure WP_HOME and WP_SITEURL are correctly set in wp-config.php.
3. Reset .htaccess.

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7. Connection Timed Out

Symptoms: Site loads slowly or fails to load altogether.

Common Causes:

• Server overload
• Heavy plugins/themes
• Low PHP memory

How to Fix:

1. Increase PHP memory limit.
2. Disable heavy plugins temporarily.
3. Contact your hosting provider to upgrade resources.

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8. Image Upload Issues

Symptoms: Images fail to upload or display as broken.

Common Causes:

• Incorrect file permissions
• Memory limit issues
• Plugin conflicts

How to Fix:

1. Set correct permissions: folders 755, files 644.
2. Increase PHP memory limit.
3. Disable all plugins related to image handling.

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9. Syntax Error in WordPress

Symptoms: “Parse error: syntax error” when editing PHP files.

Common Causes:

• Typo or missing character in PHP code

How to Fix:

1. Access your site via FTP.
2. Revert changes or upload a backup of the file.
3. Avoid editing core files directly—use a child theme.

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10. Mixed Content / SSL Errors

Symptoms: Some site elements are not loaded securely despite having an SSL certificate.

Common Causes:

• Hardcoded http:// links in themes or plugins
• Incorrect WordPress and Site URLs

How to Fix:

1. Install Really Simple SSL plugin.
2. Update internal links to https://.
3. Update media library URLs using Better Search Replace plugin.

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Final Thoughts

Most WordPress errors are caused by plugin conflicts, outdated themes, misconfigured settings, or insufficient server resources. The good news is that most issues can be fixed without coding knowledge if you follow the right troubleshooting steps.

💡 Pro Tip: Always maintain regular backups of your site before making major changes or updates.