The user of the account that was used to log into ccm has been removed unknowingly. the other user do not have permissions to administer the admin page. Is there a way to access ccmadmin? Or is there a way to create an account directly in the SQL DB to get around this?
I assume you are using MLA for this so have a look at this link.
It shows you how to disenable the MLA so that you can re configure the MLA user.
But I guess you need to know the original password used during the CCM installation.