Authentication

[kathytai]

There is a link we members use for our community meetings.  We haven't needed to sign in, and the other members still don't have to, but it insists that I have to sign in, but I don't hold the original information to get the one time passcode.  The host who set it up says he can't do anything.  I've been able to join any other links to meetings, but not that one link.  Who do I contact to solve this issue?