Tried to load a DUMMY block ERROR

Hello,

I recently came across an error in my Minecraft mod, The Arcaneum.

When the player load chunks a message containing this error appears in console.

[Server thread/WARN] [minecraft/Chunk]: Tried to load a block entity for block Block{minecraft:diorite} but failed at location BlockPos{x=3828, y=18, z=-3893}

When loading enough chunks that display this message the world begins to run behind and essentially corrupts the world making it unplayable. I need help to resolve this issue and if anyone can over anything I would be very grateful.

(This is a snippet of the console during the "crash")

33:38.19 [Server thread/WARN] [minecraft/Chunk]: Tried to load a block entity for block Block{minecraft:stone} but failed at location BlockPos{x=3282, y=28, z=-2880}
33:38.19 [Server thread/WARN] [minecraft/Chunk]: Tried to load a DUMMY block entity @ BlockPos{x=3283, y=36, z=-2876} but found not block entity block Block{minecraft:stone} at location
33:38.19 [Server thread/WARN] [minecraft/Chunk]: Tried to load a block entity for block Block{minecraft:stone} but failed at location BlockPos{x=3283, y=36, z=-2876}
33:38.19 [Server thread/WARN] [minecraft/Chunk]: Tried to load a DUMMY block entity @ BlockPos{x=3292, y=46, z=-2876} but found not block entity block Block{minecraft:stone} at location
33:38.19 [Server thread/WARN] [minecraft/Chunk]: Tried to load a block entity for block Block{minecraft:stone} but failed at location BlockPos{x=3292, y=46, z=-2876}