I made the mistake of trying to use 2FA for the lemmy.ml account. Please can the lemmy.ml admin contact me via email to arrange a fix. I’m guessing you’ll have to turn it off. I’ve tried just doing a password reset but it didn’t turn off the 2FA so there is no way to recovery from this.

Looks like the same this as this person experienced: https://lemmy.zip/post/117311