Hello, I am no knife expert, I bought my first knife a few months back, it is just a normal spring assisted knife. Can't tell you much more about it. It was working fine and the spring was normal, the knife was opening all the way to the "click" at the end. All of a sudden, when I fling the flipper or whatever it is called, it does not open all the way. I have no idea what to do. Please help me.