I am sorry, I'm very new to this, but where should "DeferredRegister#create" be placed, right now It's here
public static final DeferredRegister<Block> BLOCKS = new DeferredRegister#create<>(ForgeRegistries.BLOCKS, VanligMod.MOD_ID);
I am guessing that's wrong becuase it gives a error telling "Invalid Character". Thanks for the quick reply!