Game Bug

Hello good night, Mojang support, I want to report a Bug and at the same time ask me to return all the things that I had in my inventory at the time of dying from the game Bug. What I want to report is simple, and as I was planning in the dragon biome (END) as I was planning it, it collapsed and suddenly turned black, I didn't see anything. Then I thought that the same thing had happened to me as to one of the ones in the realms that we subscribed to and I told myself that I couldn't save myself anymore and that was exactly the case. Supposedly after everything went dark I appeared dead as if I had fallen from the world, but the strangest thing is that I did not fall from the world I was exactly 20 blocks below a flat surface which surprised me since I appeared dead for no reason, and for To fix this Bug and problems, I require you to return my items from my inventory since they are very valuable to me, without further ado for the moment I say goodbye and thank you very much.