Reseting controls

I responded to a steam message in game while playing Rust. After I responded I tried to move my mouse to play the game however it seemed like it didn’t work. So I rejoined the game, tried to change the controls, pressed tab, everything I could think of, however my controls are still stuck. I really think that there needs to be a DEFAULT key setting in the game. Because of this incident I cannot play, please put a key that resets the controls.

Thank you.