I don't know what to do with e-licenser

hello there
today i got a stainberg ur44c
i was activating my products but i got some troubles with e-licenser
Maybe, in 2017-18 i was using stainberg programs on my pc but i don’t remember what mail i have connected then
What i have to do?

I think you’ll have to contact tech support so they can look up your account from the SeL serial number.