The gate of the castle is busted. The switch on the outside wasn't working and I tried to fix it, there was lava in one of the passages and had cut the redstone connection. Next thing I know 2 creepers join me in the fixing attempt and blow half the gate mechanics out, I need help fixing it as I'm not too adept with pistons and redstone in general. (Happened a few days ago, if someone fixed it already, disregard this post)