iPhone 4 with iOS 7 randomly shuts off

[y0sh1]

Today my iPhone has been shutting it self down for 3 times already. When it shuts it self down i need to wait a minute or 5 to boot it again. I have no idea what is causing this.
I've found this in the logs at the moment my phone died:

2014-08-01 16:36:43 +0200,115,6E7A9EB6-4263-49B0-BAF3-0333455C2651,0
2014-08-01 17:14:54 +0200,115,1B9FDBC4-8806-4565-9539-AF521687A6F3,0
2014-08-01 20:36:32 +0200,115,17F68B2F-332D-4D89-8452-2DA98E9D83A0,0

Anybody any idea what this means?

 

[Ichkamo]

Did you try restoring it? If the problem is software then restoring it might work... Hope I'm helping

 

[AxoNeuron]

Are you using an app when this happens? In most cases, people use some app that has some bug causing springboard to restart.

 

[y0sh1]

Nope once i was sending a text and the other time Snapchat and the third time was just by unlocking it. I'm gonna try a restore in a minute and let you know if it worked!