One of my apps are unresponsive. I tried to update it but it's frozen now, and says "waiting" as if to update. it no longer gives me the option to delete it, no "x" appears in corner when they all jiggle. (This is my vine app, so it should have allowed me to delete it). It has been this way for about 2 days now. Any ideas on how I can remove it and then try to reinstall it?