I 've been playing for a couple hours now and after fighting a really big mutant i noticed that my double barrel shotgun is red in my inventory and i cant reload or fire it. If i select it from the menu it still shows up in my hand but i cant figure out how to get it to work again. so is there some place i need to go to get it repaired because i really like that gun.

your out of ammo for that gun

I thought that too but i went and bought some more and nope still cant use it