Seeing the “500 Internal Server Error” on your WordPress website is frustrating, especially when it appears suddenly. The good news is that this error is almost always fixable – and in most cases, you can resolve it yourself in under 30 minutes.
What Causes the WordPress 500 Internal Server Error?
The 500 error means the server encountered an unexpected condition that prevented it from fulfilling the request. Common causes include:
- A faulty plugin or theme
- A corrupted .htaccess file
- Exhausted PHP memory limit
- Permission issues on files and folders
- Corrupted WordPress core files
- Server configuration problems
Step 1: Clear Your Browser Cache and Check on Another Device
Before changing anything, clear your browser cache and try loading your site on a different device or network. Sometimes the error is cached and clearing it instantly resolves the issue.
Step 2: Check the PHP Error Log
The fastest way to diagnose a 500 error is to check your hosting error log (usually at the root of your site or in cPanel > Error Logs). The log will show the exact PHP error, file, and line number causing the problem.
Step 3: Increase PHP Memory Limit
A common cause is memory exhaustion. Edit your wp-config.php file and add this line before the “Stop editing” comment:
- define( ‘WP_MEMORY_LIMIT’, ‘256M’ );
Step 4: Disable All Plugins
If you cannot access your admin panel, deactivate all plugins by renaming the wp-content/plugins folder to plugins_old using your hosting file manager or FTP. If your site loads, a plugin is the culprit.
Step 5: Switch to a Default Theme
Rename your current theme folder in wp-content/themes to force WordPress to use a default theme. If the site loads, your theme was causing the error.
Step 6: Check the .htaccess File
Rename your .htaccess file to .htaccess_old. WordPress will generate a new one. If the site loads, your old file was corrupted.
Step 7: Re-upload Core Files
Download a fresh copy of WordPress, extract it, and re-upload the wp-admin and wp-includes folders, overwriting the existing ones. Do not overwrite wp-content.
Step 8: Check File Permissions
Files should be set to 644 and folders to 755. Incorrect permissions are a frequent cause of 500 errors.
Still Stuck? Contact Finggu Infotech
If none of these steps work, your WordPress 500 error may need professional attention. Contact Finggu Infotech for fast WordPress repair services in Mumbai.