ImageLabel image changes itself?

so im making a game and my friend made a new gui for it. so i changed it but every like 5 minutes it changes to the old one.

so this is how it looks like:

http://prntscr.com/rlx89r

and after like 5 minutes it changes to the old one:

http://prntscr.com/rlx5wu

any help will be appreciated