Electrical issue

Thanks for the help - The. 50-30 plug was bad , we bought a new one still nothing!!. Read the owners manual, there is a safety feature that shuts everything down if there is an overload or unstable power. With ours you had to start the generator , we ran it for about 1/2 hour everything was working on the generator power. When we shut off the generator it transferred to shore power and everything worked. I guess it's a way of resetting the system . Thanks for the help!,