I have the same problem.
Earlier today I installed SuiteCRM. Then I configured SMTP and sent a test email (it was successful). Next I visited my profile and clicked on the enable 2fa check box. I was immediately logged out and I have been locked out since. When I enter my user name and password I get the same message as your screenshot, I’m not sent a email and I don’t get a 2fa prompt.
Hopefully someone will know how to fix it.
Thanks
Andrew