I'm a tad confused. You said it would close at random after launching arcade games, but I don't see you actually launching any games in this log file.
I do see RetroFE exiting normally after about 5 seconds; did you press any of the "Q,Escape,joyButton10" (as configured in controls.conf) buttons to do so? If not, might it be that the wiring is a bit wonky, and might be sending any of these signals to the computer?
CoinOPS does also contain a joy2key setup that might be causing this issue. Try running the RetroFE link instead to see if that's the case.