What does this crash log means?

Question

I have already done some research on identifying crash logs but couldn\'t find solution:

Here are my references:

http://www.raywenderlich.com/23704/demystifying-

Answer 1

If your application is crashing randomly then you need to analyze your code. That you can do in XCode only.Open your Project in XCode and in Product menu you will find the Analyze option (cmd+shift+B) .make sure you have selected "iOS Device" before analyzing it.

other than this you can use the this link:

http://www.raywenderlich.com/23037/how-to-use-instruments-in-xcode

apple will not accept your app if it is crashing.