Little Weapon Bug

Hii
how i fix this bug, i cant shoot even I roll


i make 2 buttons(on-off) and 1 timer
timer
enable = false
interval = 1

leave exit game ... and put code in a button not timer

Button will write it once...(How it needs to be done, once...)
Timer will keep writing it over and over and mess things up...
Unless of course that Timer has a hotkey.
*Hint*Hotkey*Hint*