Replying to Binding Problems

I started doing Nose Butters a few weekends ago. I was doing them pretty frequently throughout the day. The next weekend I tried them and when I did my first one I popped out of my bindings. I kept trying but I could only stay in my bindings when I barely put any forward pressure on the skis. Don't really know much about DIN settings or anything else having to do with binding adjustment. This has never happened until now so is it possible that I damaged them?