Cannot move right, left and forward, only back.

Hello,

I cannot play PVZGW2 all of a sudden on my PC. The game starts normaly, no message, no error but in the game, the only movement possible is to go back. Jumping is not possible, abilities cannot be used, nothing, just going back. This is the only game I'm having problems with, so it's not a bad keyboard or things like that. Any idea how to fix this without reinstalling and losing the progress and achievements?

Thank you.