Transfers entries of Authenticator App to new mobil

Dear Support,

I have a new mobil and want to move all entries of the authentcator app to this. The app itself was no problem, but the entries. There is a cloud recovery mail address. But only privae (non business accounts) are usable. The account I used was probably previously a private one (or the check was not implemented) but now it is a business address. I can create a backup, but on new mobil device I can not enter this business address.

I tried to delete the backup to be able to use another address, but it is not possible to choose or enter another email address. How can I switch to another (privat) email address?

Regards

Chris