I'm sorry to hear that. But, are your keys have different keycodes in unity/C#?
I'm not sure but I got stuck to the left parenthesis char '('. And the keypad couldn't input a period '.' too
I just googled, as I understood, you need to type as you are on qwerty layout. Of course, it's a lot of work to do, so I won't force you continuing playing my game. Thanks for feedback :)