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[1.16.4] I need help to fix an IllegalArgumentException


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A while ago I made a tool that cycles through blockstates on fabric. I am trying to do the same thing in forge but I get this error:

java.lang.IllegalArgumentException: Cannot set property IntegerProperty{name=decor, clazz=class java.lang.Integer, values=[0, 1, 2, 3]} as it does not exist in Block{null}


I'm not sure what the error is in my code so im asking for help


My code:


import net.minecraft.block.Block;
import net.minecraft.block.BlockState;
import net.minecraft.state.IntegerProperty;
import net.minecraft.state.StateContainer;

public class DecorableBlock extends Block{
    public static final IntegerProperty DECOR = IntegerProperty.create("decor", 0, 3);
    public DecorableBlock(Properties properties) {
        setDefaultState(getStateContainer().getBaseState().with(DECOR, 0));

    protected void appendProperties(StateContainer.Builder<Block, BlockState> stateContainer) {

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