Joe....you have a short, causing the GFI to trip. I would start by looking inside that outlet that was powering the compressor. It may have gotten warm enough and melted some wire covering, causing it to short against the box.
Second, if there is anything plugged into any of the basement outlets, including the awnings, unplug the all and reset the GFI. If it holds, start plugging things back in.
Don & Mary
2019 Newmar Dutch Star 4018 (Freightliner)
2019 Ford Raptor