You haven't said if the generator is actually creating electricity. Is there an 110 outlet on the generator itself? Check there. Also, if you have an automatic transfer switch to switch from 'shore power' to generator, you'll need to check that. Also, there may be a circuit breaker on the generator that is tripped. You mentioned reseting the CBs in the coach, but there is probably one on the generator panel. Here's a link to The Generac website to download a manual if you know your model number.
Generac Power Systems - Manual Search