KJW M93R Safety Problem?

I just got a KJW m93r full auto gas blowback pistol for highschool graduation. Once i got it i loaded it up and shot a few (its a very awsome gun) Afterwards i put it on safety for like 6 mins. Once i tryed to remove the safety it wouldnt budge. It took me 5 minutes of prying it back in order to shoot it again. Now whenever i use the safety, it gets stuck really bad. help?