WHMCS Tags troubleshooting-article Troubleshoot and resolve problems with incorrect or missing text in the primary navigation bar and sidebar menu items. Troubleshoot and resolve Unable to create hosting. IP address does not exist in client's pool errors. Troubleshoot and resolve warnings about CloudFlare® trusted proxies. Troubleshoot and resolve Column 'group_id' cannot be null errors. Troubleshoot and resolve MySQL Error Code 1142 - Command denied to user errors. Troubleshoot and resolve Gateway Module Error: Configuration Function (_config) not found errors. Troubleshoot and resolve Connection refused errors. Troubleshoot and resolve The file is corrupted. errors. Troubleshoot and resolve Could not connect to database errors. Troubleshoot and resolve Could not instantiate mail function errors. Troubleshoot and resolve This license is already assigned to another service errors while working with the cPanel Licensing addon module. Troubleshoot and resolve You cannot assign a license to this service as the product to which it is assigned does not have a configurable option for a cPanel license errors while working with the cPanel Licensing addon module. Troubleshoot and resolve A license was deactivated on the same IP last month before billing could occur errors. Troubleshoot and resolve issues with missing IP addresses when you manage cPanel licenses using the cPanel Licensing addon module. Troubleshoot and resolve A reactivation fee must be paid before a new license can be provisioned for that IP address. errors. Troubleshoot and resolve cPanel Licensing options of product are not set for this service errors. Troubleshoot and resolve system cron failures. Troubleshoot and resolve system cron invocation frequency warnings. Troubleshoot and resolve Could not open input file errors. Troubleshoot and resolve issues with the system cron job timing out during metrics polling.