Bugs

I am currently using adobe ilustrador and I'm just getting ready to finish up my project and it wouldn't let my keyboard work with the application, i thing rest my iPad and tried to see it it worked and it didn't. I looked up the problem and it seems I wasn't the only person with this situation, but the did have solutions. I deleted my keyboard languages and added them again and it seemed to work up until it closed the application on its own 3-5 times. It's really a buzz kill and id like for this problem to be fixed