Authentificator Mobile App Iseeu Connection

Hello,
Hope you all doing well.
I try to recover my old account that I was not useing the account for 3 moths, when I came back I desover that there was a change regardomg the Tow Factor Authentification. I wanted to change the EMAIL authen to the App AUTHentificator.. When I introduce the code from Mobile app, it always says that its incorrect. How can I recover it or change it back to the email authentiication ?
I would really apprecitate if someone can help me with this issue.

Thanks you,
Best regards,
Idontsummon.