Troubleshoot and resolve blank or partially-rendered pages after an update.
Troubleshoot and resolve 1062 Duplicate entry for key tblconfiguration.PRIMARY errors.
Troubleshoot and resolve 1062 Duplicate entry for key tblinvoices.PRIMARY errors.
Error pages display friendly, styled messages about error conditions. All of WHMCS's error pages are fully customizable for your needs.
Troubleshoot and resolve main(): Failed opening required '/path/to/whmcs/..filename.php' errors.
Troubleshoot and resolve InvalidDomain: The domain is invalid errors.
Troubleshoot and resolve Oops! errors.