Suddenly Unable to Join Any Meeting - Says Host Hasn't Joined or Host in Another Meeting

I don't know what happened but as of yesterday, I have not been able to join any zoom meetings, including previous recurring ones. It either says the host hasn't joined or the host has another meeting - but the host is inside waiting for me. I'm not sure what is going on. It is happening on both my laptop (mac apple chip) and iphone. I tried the test zoom instructions and everything appears to be fine. I am using the latest Zoom and I am panicking because it's blocking everything. 

Can anyone please help? I'm desperate and I don't know how to talk to a human being and the AI chat bot hasn't been able to help.