Hello. I tested in two A320 I own, but both are running OpenDingux, not the older Dingux version, can you tell me witch Dingux version are you using? So I can install it on one of the A320 I have and test it.
That I could guess, it can be a permission problem (it does need write rights to the folder in order to record config and save), where did you placed rockbot? I am using /local/games lately.
Also, there should be a file called stdout.txt inside the rockbot folder, that maybe have clues.
If none is a problem, I can send you a different build, or you can also check if previous version (RC1) available in the site runs in your device.