My realm was lagging and was kicked, when I went back in I was at the world spawn and my inventory was empty

I walked home in the rain, then I ate berries, but the sound was delayed, I couldn't open doors or Break blocks, I got kicked out after that, When I went back in, I was in a village I was in a long time ago near the world spawn, but without my inventory, netherite armor, netherite sword, everything gone. I had activated an addon where a gravestone spawns when you die, and you receive a map with the coordinates of the gravestone. I had the map in the village, but my gravestone was Not there. (you have to dismantle the tombstone then everything you had in your inventory before comes out) So the lag apparently killed me but despawned my inventory