Troubleshooting 500 Errors from cPanel-Hosted Sites

A 500 error is a general failure indicator, not a root cause. The fastest route to resolution is identifying which recent change introduced the break.

Priority Checks

• Review the application error log and any recent file or permission changes.
• Check for malformed rewrite rules or broken configuration directives.
• Confirm that the active PHP version and required extensions are correct.
• Disable recent code changes or plugins if the error began after deployment.

Incident Response

Capture the exact time of failure and the affected URL pattern before making multiple changes. That preserves the evidence needed to identify the cause rather than masking it.