Facebook app on Iphone 4 isn't working?

Whenever i go to open facebook, it acts as tho its loading but then kicks me back out to my home screen. All my other apps are working fine. I can still see i have notifications but i can't actually get on there. I have sprint if that matters at all…

what should i do? There's no updates available and i've already tried turning on and off my phone.
should i delete the app and redownload? And would that mess anything up as far as my facebook if i did that?

I bought an iphone 5 that was cleared and there was no sim card?

I bought an iphone 5 and the sim card was removed and there was no information on the phone.could I get it put on my plan with Verizon and I don't know the history of the phone so how would I found out about that and what if its stolen. Is the phone stillgood or did I throw a couple of hundred dollars in the trash.

What could have caused my iPhone to shut off & stop working?

I was listening to music, unplugged it & the whole phone shut off. Nothing works. I've never dropped it in any water before. It's been dropped but I think everyone's phone has before. It always had a case on & there were no shatters ever. It was in new condition. I have no idea what happened. Also will apple replace my phone if i still have warranty or will they just send it back broken.

I dropped my iphone in the bathtub what do i do?

It was my birthday and my friends planned a scavenger hunt. I had to sit in the bathtub and search for a clue. I didn't realize it but my iphone 4 was in my pocket. I was in the tub with my pocket for about 30 seconds as soon as we figured out we put in a closed bowl of rice. We left it in there for 2 weeks. We took it out and it worked for about a week. Then when it died it wouldn't start up. Now when we charge it the apple sign will come up for a few seconds and then it will go off. It does that over and over Help!

I need to get my albums onto my iPhone 4?

So I got some music online and I had to sort the songs into their albums. I did this and got the artwork onto it also. I did all of this on my iTunes Library. Now I would like to get the albums onto my iPhone 4. I have tried syncing my music, and transferring the purchases. This process took me 2 days, and I do not have the patience, or time, to do it all over again.

How to use Sprint cdma iphone 4 on cricket?

I recently bought iphone 4 from craigslist. It is locked to sprint
I don't have sprint connection
I heard that it can be used with cricket

Can anyone tell how to purchase only cricket phone number and use this on my cdma iphone 4