CWP account API error in creation a new account in WHMCS

I have problem .... good like ..... I do not get to create the user in cwp, however in whmcs and in the client panel if it is active. Centoswebpanel / CreateAccount Retry Mark Resolved Allowed IP is not set or you do not have access from IP

I keep trying to automatically create the accounts in CWP with WHMCS still giving error Centoswebpanel / CreateAccount Retry Mark Resolved Allowed IP is not set or you do not have access from IP --- any suggestions ?. I do not know what else I have to check