Help! Domestic Refrigerator not getting cold.

Thanks for all the replies. To answer a few questions. When I moved the RV, I did not re-level it (I did not know how. This thing is complicated). There was no RV hookup where I parked it but there was access to a 110v outlet from a house. Using an adapter I found underneath in the storage area I was able to plug it into the 110 outlet. My thought was to just power the fridge to keep the food from spoiling. When I cam back after a week, all the food was rotten and the refrigerator button was in the OFF position. I have no idea how it got turned off, and I know that I did not do it. I don't know if the unit has some sort of safety device that would turn it off, but if it did, that would explain how it got turned off. The other possibility is that it got bumped somehow and was turned off and never was running the whole time it was unlevel. It was parked on a very level drive way, so if it was out of level, it was not by much.

I will take a look at all the suggestions given tomorrow in the daylight. Thanks again.