The SolusIO addon module allows customers to register for, manage, and configure post-pay for VMs and provisioning in SolusIO. Use the Staff Noticeboard addon module to quickly communicate with staff with a digital noticeboard in the Admin Area. Troubleshoot and resolve You cannot delete the active system theme. errors when deleting themes in the Theme Editor addon module. The Theme Editor addon module allows WHMCS Cloud users to create and update custom themes for the WHMCS Client Area. Troubleshoot and resolve The system could not create the theme. errors when creating themes with the Theme Editor addon module. The Translation Editor addon module allows WHMCS Cloud users to override translated text in the WHMCS localization system. Troubleshoot and resolve errors when a client cannot retrieve their WebPros Cloud service login credentials. The WebPros Partner addon module helps WebPros Partners use the Manage2 API to provision, manage, and bill for licenses and WebPros Cloud services. Troubleshoot and resolve provisioning errors when the WebPros Partner addon module cannot create a license or service in Manage2. Troubleshoot and resolve license validation, suspended license, and stuck validation errors for the E-Invoicing addon module. Troubleshoot and resolve Deep-link handling failed errors that occur while using the Nova Cloud: Prompt First addon module. Troubleshoot and resolve the error that appears when the E-Invoicing addon module cannot synchronize your account with the e-invoicing service after you save settings. Troubleshoot and resolve missing client data warnings, contact export failures, and clients without E-Invoicing enabled in the E-Invoicing addon module. Troubleshoot and resolve invoices that fail to export or show an Error status in the E-Invoicing addon module, including eligibility checks and retry limits. Troubleshoot and resolve changes to an invoice that you already exported to the e-invoicing service, which the system treats as immutable. Troubleshoot and resolve invoices with an e-invoicing status that does not update after export, including webhook delivery and 401 errors. Troubleshoot and resolve invoices that show a Refused status in the E-Invoicing addon module after the recipient rejects the e-invoice.