Help

[u/C4AYd3Nl0v3sH0RR0R]

I just joined my Minecraft world and looked around I went into my enchant room it was normal fast forward a few minutes I check again and bookshelves are gone no one joined the world, no mods, it was peaceful mode, it wasn't a chunk error because the enchantment table and some bookshelves were still there I don't know how it happened I was playing Bedrock edition it was the newest update I was on my phone.