Email account creation from Cpanel results in this error. Generally, this error is encountered while there is appropriate file structure is not present on file manager.
- Login to your Cpanel Account.
- Go To File Manager.Make sure that following folders are present.
public_html public_ftp mail etc
Mostly, absence of etc folder at home directory causes this error.That's It. Try to create the email account and it will get created without any error.