App crashing after spash screen after updating my Android to latest version

Hi,
I am working on an application on Android and I used to build APKs for tests but since I updated my NEXUS 7 's firmware version to 4.2 and then 4.3, the app crashes after the splash screen. I couldn’t find any fix so I am asking for help.
Here is my entire log before I get the “Unfortunately app_name has stopped” message on device:

and here is my AndroidManifest file:

Does an empty project work correctly in your device?

Have you installed the 4.3 SDK in the Android tools on your development PC?

I will try this soon and I will come with a reply

Yes I have installed all latest SDK tools. BTW, my current Unity version is 4.1.3. Can this be the possible problem? I didn’t updated my Unity because I am afraid of not revertible issues in my project