My ac300 won't charge off motorhome built-in generator

My ac 300 won’t charge from my motorhome’s generator.

I don’t suppose you could give any details regarding the circumstances of not charging? It may be of some assistance to those that could offer insight into the failure to charge.

Yes, sorry! We moved to a place where we had shore power. Change the ac300/b300 up with that. I know it was giving me a constant alarm and just won’t try to change. I will run the bluetti down and then try changing it again from the Onan Marquis gold 5500 on board generator.