Cpanel bandwidth not updating
Attempting to perform a creation will fail with an error, and you must delete the DNS Zone to be able to successfully provision a new account.If you receive this error when trying to create an account then you need to correct the Packages Name setting.When terminating a c Panel/WHM account via the admin area, you are provided with an option labelled "Keep DNS Zone".Selecting this option will terminate the account on the c Panel/WHM server while preserving the DNS Zone Record.To do this, go to Setup Module Settings on the package where you are receiving the error.Where it asks for the WHM Package Name, you must enter this exactly as it appears in WHM - which should be in the format username_packagename.
WHMCS Connect allows you and your administrators to quickly and easily access the control panels of all the servers configured in your WHMCS installation that support Single Sign-On, enabling you and your staff to administer and make changes without ever needing to re-authenticate.
Use cases for this include scenarios such as account migration where DNS forwarding is being used.
You will not be able to recreate the account on the server when a DNS Zone already exists for it.
Therefore it is no longer possible to use an old version of WHMCS with the latest version of c Panel.
You will need to upgrade your WHMCS install to version 4.2.1 or above.