I have faced a couple of computers in the game but i haven’t got stuck until now when i am in abyssal base, and when i am trying to paste the password the text just dissapears whenever i’m trying to write a letter. i love this mod btw, and could really need some help.
Is it just the abyssal base where you’re encountering this problem? Are you able to name a newly caught pokemon or rename a pokemon or visiting someone else’s friend safari?
It sounds like a keyboard buffer memory issue, try mashing the Backspace key or restarting your computer.
It worked somehow when i tried what u said, thanks alot m8! 
I just get a lot of dashes and i cant enter the password bc whenever i let go of the backspace button it just puts in more dashes what do i do