Login-problems

Hi
It seems that the avaiability of the FACEBOOK-login will end. I have several times tried to change to the IMDB-login like discribed but didn't succseed. Every time i was able to log in with the IMDB-login I haven't seen any previous data. So i have inmeadetly deletet the account, what was perhaps a bad idea too.

Actually I still have all my data in the Android-app. But perhaps this is only the cache. Is my data still on the server?
The account-name shown in the app is bruno-liechti and my email-adress (as used in FACEBOOK) was all the years bruno.liechti@gmail.com.
What can we do?
Thx & best regards
Bruno