as soon as i place the last block in the obelisk with a soul rift in it, it crashes my game and whenever i try to rejoin the world it crashes again. idk why this happens, here is the crash code:

code: -1
message: The game crashed whilst unexpected error
Error: java.lang.NullPointerException: Cannot invoke "net.minecraft.class_5944.method_34583(String, Object)" because "$$2" is null

Please add your crash report too