What would be the best way to fix the little stopper switch for one of the motors on my Aquilla?

One of the stepper motors’ switch things (the metal part that hits the bar to tell the motor it’s at one end of the track) came out and it’s either bent too much or snapped off (it’s so small I can’t really tell) and it doesn’t go back in place, which means I can’t use the printer because the motor with the head on...