app is not starting

i had downloaded this demo on my android device to test this amazing work but gives me error or sometimes crashing ?

i downloaded this android version and install apk file on try to rum it but gave me error oob and key not found ?

It works fine for me. You need to install the obb with the included batch file; you cannot just install the APK. Also, it uses ATC compression so it likely only works on Adreno devices.