I have an iPhone 4S and it just locked me out from anything else BUT twitter??

Question

I was using Twitter and went to click my home button...all of a sudden the screen went black. And when I clicked the home button again, it didn't take me to my lock screen, but back to Twitter. I did this multiple times and the same thing kept happening. I was seriously locked on my twitter app. It was exceptionally weird because the Twitter app was functioning perfectly. I could do everything on the app, but I seriously for the life of me could not get out of it!! Also, at the top of my screen where the time should be, it was completely blank. But only the time was gone, not my battery life or signal or anything else. It would probably also help to say that I do not have the iOS 7 update and my lock button is broken (I need a new phone desperately lol). Anyway, I tried to pull up the multitasking screen, but that wouldn't work. I tried to lock the phone with my assistive touch and that didn't work either. I finally was able to pull up Siri and have it search for something random. By doing that, I was able to unlock my phone and it took me to Safari. From there, my phone started working fine again. Now I know I fixed my own problem, but I REALLY don't want that to happen again. Can anyone explain to me what the heck just happened to my phone??

Answer 1

Hey AceDuece,
First, I would start with the steps in the "Troubleshooting on an iPhone, iPad, or iPod touch" section in the following document:
Can't connect to the iTunes Store
http://support.apple.com/kb/TS1368
Those are going to be pretty basic steps, but they're still worthwhile and I'd start there.
If that doesn't resolve the issue, then you'll want to move on to this:
iTunes: Advanced iTunes Store troubleshooting
http://support.apple.com/kb/TS3297
Make sure you run through all the applicable steps to the very end. I know the articles say iTunes Store, but the troubleshooting steps still apply to the App Store issues you're encountering.
Have a great day,
Delgadoh