Today my Facebook app kept freezing up. So I deleted the app off my phone and went to redownload it, and instead of letting me download it, it says "open". The app is not even on my phone!!! Also in my settings it says it's installed, once again it's not. I've restarted my phone and tried turning it on and off. It didn't work. I'm thinking it could be the app. Is anyone else having this problem? Is there a solution?