Intruder in my Zoom rooms and whiteboard - Hacked?

[KHatter]

I have recieved over a dozen emails notifying me that someone has been entering my zoom space over the last several days and creating whiteboards, etc. (ex: Xiaomi 22041219I has created the following whiteboard in your meeting "Kristi Hatter's Personal Meeting Room"). I have logged out completely and signed back in. I have deleted all of the items this person has created. I tried to change my PMI in my account settings but when I create a new PMI and click save I get "Meeting already started." and it wont let me change the PMI. I cant see any open meetings to try to shut everything down. How do I get this person out of my account and how do I change my security settings to ensure this does not continue!?