Entire inventory and items in ender chest deleted

A friend and I have been playing a survival world for just over a week and today my friend disconnected from the world (he started the world) as he disconnected he sent me an invitation resulting in my game crashing. Once I joined back I'm in the spawn point of the world with a starter map and nothing else, before this I had full enchanted diamond armour and tools and had multiple spare enchanted items in my ender chest I don't know how this happened but it really killed the enjoyment and constant grind of the world. Bedrock edition. I will attach some images to show Proof, the image that shows my armour bar and hot bar were taken yesterday.