I don't know why the sticker would say, "Dinge (Dingie?) 0" If you have 5,000 towing and 500 lbs. on the hitch, it should handle a tow bar and toad, as long as it doesn't weigh over 5,000 lbs.
isn't a label I've ever seen, GVWR
means "gross vehicle weight rating" is used to show the limit of the RV including RV, passengers, fluids, luggage, etc. IT doesn't include the weight of a trailer, so I don't know why it would be on a receiver hitch.
means 'gross combination weight rating' and would be the combined weight of the loaded RV and the trailer or auto you're towing.
I suggest you check the sticker again. Also look for a label near driver's seat and perhaps additionally in a cabinet or closet that lists the Federally required information. Once you find that information, you can load your RV as for travel and get it weighed at any truck scale. The difference between your GCWR
and the actual scale reported weight is how much weight you can tow.
Looking at the specs for your RV:
Towing Capacity (lbs/kgs) 5000 / 2268
GVWR (lbs/kgs) 20500 / 9298.8