Phonegap works fine. I had an audio bug the other day. Somehow one of my audio files was corrupted. Preloading or playing that sound let the app crash. Due to I was preloading all sounds on start it always crashed right away. I was not able to use the debugger but I figured it out by taking out plugin by plugin and then audio file by audio file.
Maybe you have the same problem. To not loose all your settings you could set "preload all sounds on start" to off and load a a layout that doesn't interact with music on start.
In general, you should describe the crash better and even if you don't want to share capx you could tell us your plugins, settings and sizes.
Regarding CCJS exporter: You should drop that. It has been deprecated for a reason. Try PhoneGap (or Ejacta).