Knowledge Base

What is HTTP ERROR 500 and How to Solve It?

HTTP ERROR 500 is an error message indicating a server-side issue on your website. This is commonly referred to as an "Internal Server Error" and signifies that the problem lies with the server, not the user’s browser. Resolving this error usually involves examining the website's files or server configurations.

 

Common Causes of HTTP ERROR 500

 

1. PHP Version Incompatibility
The PHP version used by your website may not be compatible with its code. For example, software developed for older PHP versions (like 5.x) may not function properly on newer versions (like 7.x or 8.x).

 

2. Faulty .htaccess File
Incorrect rules or missing module declarations in the .htaccess file can trigger this error. This is particularly common in platforms like WordPress.

 

3. File and Directory Permission Errors
If incorrect permissions are set for your website’s files or directories, the server may be unable to access them, resulting in this error.

 

4. Plugin or Theme Conflicts
In CMS-based websites, conflicts caused by incompatible plugins or themes can lead to this issue.

 

5. Insufficient Server Resources
If your website lacks enough server resources (such as memory or CPU), this error may occur.

 

Steps to Fix HTTP ERROR 500

 

1. Check Error Logs

• Use the Error Logs section in your cPanel dashboard to find detailed information about the issue.
• This can help you identify the file or code causing the problem.

 

2. Verify and Adjust PHP Version

• Navigate to the MultiPHP Manager in cPanel to check and modify your website’s PHP version.
• Select a PHP version that matches your application’s requirements:
  • PHP 5.6 for older software,
  • PHP 7.4 or 8.x for modern applications.

 

3. Review the .htaccess File

• Open the File Manager in cPanel and inspect the .htaccess file.

• Temporarily rename the file (e.g., .htaccess_bak) and test your website. If it works, the issue lies within the .htaccess file.

• For WordPress, you can restore the default .htaccess configuration:

   

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

 

4. Correct File and Directory Permissions

• Ensure file permissions are set to 644 and directory permissions to 755.
• You can adjust these settings via cPanel’s File Manager.

 

5. Disable Plugins and Themes

• If you use a CMS like WordPress:
  • Rename the wp-content/plugins folder (e.g., plugins_bak) to disable all plugins.
  • If the error resolves, reactivate plugins one by one to identify the problematic one.

 

6. Monitor Server Resources

• Use the Resource Usage section in cPanel to check if your site is exceeding its CPU or memory limits.
• If resource limits are being reached, upgrading your hosting package may help.

 

Need Additional Help?

If you’ve followed these steps and the HTTP ERROR 500 persists, don’t hesitate to contact our technical support team. We’re here to assist you and ensure your website is back online quickly.