I cannot log in to previous my basic ZOOM account.

[dopeman164]

I cannot log in to previous my basic ZOOM account.
I have a basic ZOOM account. But I haven't been able to log in to it at all for about two weeks. Because ZOOM always asks me for the code that makes an authentication app. I've never set my account 2FA, so I don't have any backup code. I don't have an authentication app, either. I would like to delete this account. I made another account to ask about this problem, and I tried to register my phone number in this new account, but I couldn't. I think that this situation occurred because of the existence of my previous ZOOM account. please tell me how to solve this problem.