I am really confused now. Even more than usual....if that's possible
The breaker was tripping with AC/hwh on. Went outside to plug the rear AC into a 20A plug labeled wifi, do not turn off, and the manager said get a 30/50A adapter? When things failed only the 30A plug was inserted and the "AC" was running. Now getting a 30/50A adapter to make the REAR AC work???
Maybe the 30A plug is suspect and there is a 50A available? How would that make the rear AC, apparently with a separate 20A plug, work? Hopefully the OP will post back and clarify, and, hasn't wasted the money on an adapter. A good EMS would have this solved - (note to OP - a very good idea and use of your money!!).
Good luck in getting this resolved - don't forget flaky campground power; happens a lot.