Fix single script instance running multiple times?

Hello, I am creating a tycoon that moves objects between replicated storage and workspace. Whenever it moves it starts running again, even if it is already in that destination. All it does now is count up. Ex output:

1
4
2
5
3
6
4
7
5
8

check if there are any of these loops;

for
while
repeat

If there isn't please provide us with the script you are using