https://docs.whmcs.com/9-1/tags/addon-modules-general/Recent content in addon-modules-general onHugo -- gohugo.iohttps://docs.whmcs.com/9-1/troubleshooting/troubleshoot-addon-modules/addon-module-oops-errors/Mon, 01 Jan 0001 00:00:00 +0000https://docs.whmcs.com/9-1/troubleshooting/troubleshoot-addon-modules/addon-module-oops-errors/Covers the generic Oops! error that appears when an addon module is incompatible with the WHMCS version or system configuration, and the fix: remove the module files from the /modules/addons directory or obtain an updated version from the developer.https://docs.whmcs.com/9-1/troubleshooting/troubleshoot-addon-modules/missing-addon-modules/Mon, 01 Jan 0001 00:00:00 +0000https://docs.whmcs.com/9-1/troubleshooting/troubleshoot-addon-modules/missing-addon-modules/Explains why an addon module does not appear in the Admin Area Addons menu: the module files are missing from the system, or the logged-in administrator role lacks the required module access, and the fix — verify the module’s files exist and that the administrator role includes it.