Auto-Submitted Header ErrorsTroubleshoot and resolve The system prevented an autoresponder from opening a ticket. (WHMCS 8.4 and later) or Prevented an Auto Responder from Opening a Ticket (WHMCS 8.3 and earlier) errors.
Automatic Updates UnavailableTroubleshoot and resolve issues that cause the system to disable automatic updates.
Bad User name or Password ErrorsTroubleshoot and resolve Bad User name or Password errors while using Enom for domain registration or SSL certificate sales.
Bizcn Domain Registration CodesTroubleshoot and resolve 211 Domain name not available errors while using the Bizcn domain registrar module.
Blank Choose a Domain PageTroubleshoot and resolve issues with a blank Choose a Domain page in the Client Area.
Blank Domain Search ResultsTroubleshoot and resolve issues with domain search results that do not display in the Client Area.
Blank or Partially-Rendered PagesTroubleshoot and resolve blank or partially-rendered pages after an update.
Broken Renewal Links in EmailsTroubleshoot and resolve issues with broken domain renewal links in emails.
Cancelled Domain Renewal InvoicesTroubleshoot and resolve issues with domain renewal invoices that the system has set to Cancelled.
Captcha Verification FailedTroubleshoot and resolve Captcha verification failed. errors for hCaptcha® and Google® reCAPTCHA v3.
Certificate Not Detected ErrorsTroubleshoot and resolve A Certificate Authority verified SSL certificate was not detected errors.
Certificate Subject Mismatch ErrorsTroubleshoot and resolve curl: (51) SSL: certificate subject name '*.whmcs.com' does not match target host name errors.
Character Display in ReportsTroubleshoot and resolve incorrect display of accented (Unicode) characters.