Android phone getting error when trying to add contacts

I tried to set up a practice zoom meeting.  When I went to invite my friend, and went through the Phone Contacts Matching, I used his phone number.  (In my defense I was very tired and misunderstood).

Anyway, so it sent him the text and I entered the code into my phone.

When I look at My Contacts, there are none there of course.   When I go back through the Phone Contacts Wizard, and use my  cell phone number, I get an error:    Please provide a correct phone number.

How can I fix this?   I tried uninstalling and reinstalling, and I can't find anwhere in the app where my phone number is stored.    I'd really like to invite contacts from the contacts on my phone.

Thanks!