Your stick looks a little bent mate.
Haha, if you have a good shot your stick bends when you shoot, and comes back to normal, it's called flex. 
Either that, or u made completely wrong contact, hit the floor and your stick broke 
LOL, well you hit the ball/puck about 3 inches before the actual ball/puck, to get flex which shoots the puck.
Like a slingshot.