https://docs.whmcs.com/9-1/tags/error-handling/Recent content in error-handling onHugo -- gohugo.iohttps://docs.whmcs.com/9-1/customization/error-pages/Mon, 01 Jan 0001 00:00:00 +0000https://docs.whmcs.com/9-1/customization/error-pages/Lists the default error template files (error/internal-error.tpl, error/page-not-found.tpl, error/unknown-routepath.tpl) in the Twenty-One and Six themes, explains how to customize them in a custom theme directory without altering the dynamic content WHMCS inserts, and documents the available template variables css, email, stacktrace, systemurl, and title.https://docs.whmcs.com/9-1/troubleshooting/errors-in-whmcs/Mon, 01 Jan 0001 00:00:00 +0000https://docs.whmcs.com/9-1/troubleshooting/errors-in-whmcs/Lists the three levels of error control in WHMCS - environment-level PHP ini settings, the $display_errors and $error_reporting_level variables in configuration.php, and the Display Errors setting in General Settings > Other - and how each takes precedence.https://docs.whmcs.com/9-1/system/general-settings/general-settings-other/Mon, 01 Jan 0001 00:00:00 +0000https://docs.whmcs.com/9-1/system/general-settings/general-settings-other/Documents Marketing Emails opt-in settings, Admin Client Display Format, Default to Client Area, Client Area User Management, Client Registration, Optional/Locked Profile Fields, Show Cancellation Link, Banned Subdomain Prefixes, Encoded File Loading, Event Handling (Concurrent/Inline/Cron), Display Errors, Log Errors, SQL Debug Mode, and Hooks Debug Mode.