While fishing last night the motor started and ran fine for the first couple of hours (started and moved around probably 4 or 5 times). On the way back to the launch it started dogging real bad and eventually shut off. There were no alarms. I tried restarting and it would crank over and fire but die right away. I got it home and pulled the cowling off and noticed a wire harness plug that was disconnected. Was this the problem or is there a bigger issue? Any help on this would be appreciated.