Calendar service is disconnected in the App. None of my saved/scheduled meetings show in the App.

The Zoom App on my iPad is now prompting with the message "Your calendar service is disconnected. Tap to configure". I have a large number of scheduled/recurring meetings in my online Zoom account, but now when I sign in on my iPad which I use for Zoom meetings, there are no meetings. It keeps prompting me to sign into my Google account and then warns that Zoom permissions can permanently delete contacts, calendar items and more. 

Why when I sign in on my iPad are all my meetings gone and it now is prompting me in the endless circle of Google authentication in a web browser?

Thanks for your help