How can i find my email adress?

Hello there. I have old account here. But i don't remember my password. I know the username, but nothing else. I don't remember what email i've used. is there a way to find that out?

And i have old accounts from molten-core. Does they are sitll active?

https://prnt.sc/ou6dow

Depends how long you were gone.

I took a few years break. All accounts had been deleted in that time.