Once you repaired your receptacle, your breaker panel should indicate if your on shore or generator power.
If it indicates no shore power, make sure the switch is on for the shore power cord.
If all looks ok and it still does not turn on, check to see if the transfer switch is properly switching between shore and generator.
This requires a volt tester and caution. You should get a reading of 240 volt between the two phases, and 120 volt to neutral and/or ground.