Like some of you I too had meat left in the trailer and the power went out and was greeted with the maggots in our previous trailer. This is how you fix it.
Clean out the fridge freezer the best you can.
Crumple up newspapers to fill the interior space
Grind up fresh coffee , lots of it. And liberally sprinkle it over the newspapers
And interior of your fridge freezer.
Close the the fridge freezer doors.
After several days you will have a great smelling fridge and the newsprint will have absorbed all the rotten smells. The coffee smell will disappear after a while and you will have a good campfire story to tell.