Can you please help me with this thing?

While I was playing with my super soaker aqua shock secret strike water blaster, the trigger somehow broke. And now, it shoots by itself without even me pulling the trigger. And I can't pump because everytime I pump, the gun keeps shooting water by itself and the wastes pumping pressure. Everytime I move the blaster, I hear noises from something inside the firing chamber. Can you please help me with this problem? Can I just repair it or do I have to by a new water gun?