Twistechi: LCD screen repair? I went to clean it; now it's faded

So, I am not sure what to do I just cleaned and replaced the battery in an (I believe nano style) tamagotchi from 2020 it's the Twistechi model I think I got moisture beneath the screen. it's glitching and blinking as well as mostly faded to the point you can't see anything. Is there a place I can send it to be repaired or replaced and what would that cost? or a way to do so myself?