My long term minecraft world has corrupted chunks that deleted my stuff

My long term minecraft world has corrupted but I can still join but chunks of my world was reset and most of everything is gone thousands of hours gone it also did it do me and my friends world 88 hours on hat world alone at least 2000 on my world. In the picture that was just my front walls there was at least 2 times that much before with my storage room and all my farms now gone. Bedrock 1.21.132