Backend is disconnected trying to use electrum server via tor onion adress on port 50002 with nginx reverse proxy

hello guys
I need help as i am not able to connect my electrum server with onion adress in trezor suite I add my onion adress followed by access port :50002:t and i am behind a reverse proxy nginx that i am using with sparrow, or even bisq to connect trezor suite to it but it doesn’t work.
I allowed connection via ufw on this port either.
Does someone have any idea where i could looking for make it working?

Thanks for your help.