Urgent help on how to log app crash


Dear all,

I have install Android-x86 7.1 on an Intel Nuc7i5BNK which instalml correctly and have full access to web.
Then my customer ask me to test his application DRagon Ball Z dokan battle on this version.

When I start the application, I get a black screen. I do not know if application has really started. Then after a while I get a message to try to re open the app.

I try to use aLogCat Root app in order to debug the app log but when I startr log cat it ask all time a lot of authorisation each time to SuperSuer su which I could understand. Not able to run aLogCat.

How can I get reason why the app crash ?

Please note that running the same app on a phone or tablett works perfectly, only in Android-x86 it fails

Thanks for help