I made a mistake while doing somthing and i could not undo it. I tried other keybinds and none of them work. I have done these:
Restarted
Checked my keybinds
I cant do Ctrl C, Ctrl V, Ctrl D, Ctrl, X, ect. Although the keybinds work fine in the script editor
Also i cant reinstall studio. Last tiem i had to do that it took literally a week to install