please have a close look at the debug output of the desktop version at first: go to the “Application Output” pane and press Ctrl + F and search for “error” and “warning”. Maybe you will find your error on desktop as well. Is this message exactly what your application pops up? Do you visually see any problem with your game, like missing images, fonts, etc.?
Next step would be, to inspect the Android debug log output. You can do that by installing the Android SDK and then call ddms from the android-sdk/tools folder. Then look through the Android log for errors and warnings and nail your issue down. If the error is not in your code, please send us your log output so we can have a look at it.