Error when adding an admin to my CRM. New Email address is registered to someone else.

Error when adding an admin to my CRM. New Email address is registered to someone else.

Hi,

I am super admin and have added a colleague as an admin to our crm. 

The problem is that when he logs in he gets to a page for registered email verification for a name that isn't his and an email address that isn't his.

He's a new employee therefore has a completely new email address, but somehow, on Zoho, it is already registered to some one else.

Please help - It's unproductive and driving us nuts!

Thanks

Pete