Can't login on new device

Hi,
I have the problem, that I can’t login to moviebase-app on a new android device.
The problem is, that I don’t know the email-adress with which I created the account.
On another android device I’m logged in, but I only see my username.
There is no option to change or to access email-adress.

I hope Chris could help me to solve the problem?
Thanks for your support

Would it help you if we display the email address in your profile?

Probably it would help me!
Then i can check if the email address still exists.