Journey On. is a 25 and obviously you have a 22. However, let's try the following, until someone with more knowledge chimes in.
On Journey On, the 110 outlet circuit is fed by the main 110 breaker and has its own breaker, which is for an overload. The 110 outlet next to the AC panel has a GFI outlet which I have to reset every once in awhile. The other 110 outlet doesn't have a GFI breaker. And by the way, that's true of the house wiring, in that each circuit is protected by a single GFI outlet.
So the first question is why does each (both?) of your outlets have GFI protection? Did someone do a home built wiring scheme? Can the hot and ground AC lines be reversed?
Next, granted that the GFI trips, both of them, is the green wire connected back to the shore power plug? You can run a resistance check with a voltmeter for this, I presume. And does your shore power cord connect to grounded green wire?
Finally, have you tried replacing the outlets? Once in a while, I found a GFI outlet that trips rather easily. And it's the last thing I think of, so I go nuts finding why the power shut off.
Good luck, Boris