the minecraft world was damaged, most of the buildings were missing

The world on Minecraft version 1.20.51 was damaged, most likely as a result of interaction with the program (Майнкрафт постройки), namely, a building was added to the world, after which most other buildings disappeared, including buildings made manually (independently). After this problem was discovered, an attempt was made to restore the world using the mechanics of deleting a recent building in the application. This did not help, the world remained damaged without the buildings being restored. How to restore peace? What to do, we really hope for your help!

 

P.s. this situation occurred on an ios device on minecraft version bedrock 1.20.51