My Stuff Is All Gone!

In my Inv:
1 Diamond Pickaxe (eff 3, unbreaking 2)
4-5 stacks of quarts (NOT THE BLOCKS, the stuff you get from mining the ore)
38 beef
1 bucket of water

I had no armor on me because I was in the nether and didnt want to die. When I went to parkour, the server lagged, and i fell outta the map (in parkour world). Then it crashed....when I logged back on 5m later, all my stuff was gone.

My EnderChest was also wiped for some reason, I dont remember all but here goes my best:
1 set diamond armor (un-used, un-enchanted)
1 diamond armor set (prot I for everything and boots had unbreaking 1)
20 emeralds
1 nametag
some amount of diamonds (no idea)
some more nether quarts I was storing, no idea how many either.

I returned your items as well as notified you in game.