Ill make a weapon for the customer and they'll take the weapon and pay for it, but then they never leave the store and nobody else comes in, the shop is open, the doors are open, its the middle of the day. If i exit out of the game and then reopen it they will disappear but then the next customer will do the exact same thing. Any body know a permanent fix?

Look in the bug reports section if you're unsure about a problem, I've talked about this as well