User profile for user: jeremy_v jeremy_v User level: Community Specialist Nov 19, 2017 7:53 AM in response to Salehahmad1980 Hi Salehahmad1980! It sounds like the Facebook app on your iPhone is quitting unexpectedly, and I'm happy to help. Please follow these instructions, including contacting Facebook if necessary. If an app you installed unexpectedly quits, stops responding, or won’t open Thanks for using Apple Support Communities. Cheers! Show more Less Reply Link