How to Fix 500 Internal Server Error in cPanel
Posted about 10 months ago 5.4kCommon Causes of 500 Error
Most frequent: .htaccess syntax error or PHP memory limit.
1. Check .htaccess File
File Manager → public_html → Rename .htaccess to .htaccess_old → Refresh site.
2. Increase PHP Memory Limit
MultiPHP INI Editor → Raise memory_limit to 512M or higher.
Advanced Troubleshooting
View Error Logs
cPanel → Metrics → Errors → Look for specific PHP fatal errors.
Disable Plugins/Themes
Rename /wp-content/plugins/ folder temporarily (WordPress).
Solutions Table
| Cause | Quick Fix |
|---|---|
| Corrupt .htaccess | Rename and regenerate |
| Low memory_limit | Increase in php.ini |
| Bad plugin | Disable all plugins |
| Permissions | Set folders 755, files 644 |