compileJava Error due to incompatible types

Sorry if this has already been posted before! I haven't see any info on this

The error I am getting is:

error: incompatible types: ItemPropertyFunction cannot be converted to ClampedItemPropertyFunction

  ItemProperties.register(item, new ResourceLocation("blocking"), ItemProperties.getProperty(Items.SHIELD, new ResourceLocation("blocking")));

error: incompatible types: Item cannot be converted to MobEffect

  HAPPY = register("happy", new HappyJuiceMobEffect());

error: incompatible types: inference variable T has incompatible bounds

  return Registry.register(BuiltInRegistries.MOB_EFFECT, new ResourceLocation(OmorcraftMod.MODID, registryName), element);

Sorry if it's a repost, but I don't understand how to fix this.