Empty Pages

Troubleshoot and resolve empty pages while using WHMCS.

Encryption Hash Errors

Troubleshoot and resolve the messages that appear when the installer cannot verify or save your credit card encryption hash while you update WHMCS in the browser.



Enom Empty Response Errors

Troubleshoot and resolve Cannot parse empty response from server/Empty data response from server - Please try again later errors while using Enom for domain registration.

Enom Invalid Data Errors

Troubleshoot and resolve Invalid data response from server - Please try again later errors while using Enom for domain registration.


Enom User Not Permitted Errors

Troubleshoot and resolve User not permitted from this IP address or Registrar Error Invalid Client IP errors while using Enom for domain registration.

Entity Reference Errors

Troubleshoot and resolve Entity reference not found errors while transferring a domain using CentralNic Reseller.




Facebook App Not Setup Errors

Troubleshoot and resolve App Note Setup: This app is still in development mode, and you don't have access to it. Switch to a registered test user or ask an app admin for permissions errors while authenticating using Facebook® Sign-In Integrations.

Facebook URL Errors

Troubleshoot and resolve Can't Load URL: The domain of this URL isn't included in the app's domains errors while authenticating using Facebook® Sign-In Integrations.

Failed Opening Errors

Troubleshoot and resolve main(): Failed opening required '/path/to/whmcs/..filename.php' errors.



Fatal Memory Size Errors

Troubleshoot and resolve Fatal error: Allowed memory size of 33554432 bytes exhausted (tried to allocate 20480 bytes) errors.