Installing the patched addon requires enabling "Experimental Gameplay" in your world settings to ensure all custom components load correctly.
While the original 1:1 port of Crazy Craft is largely broken for the latest versions of MCPE (1.20 and 1.21+), the community has pivoted. Instead of one giant modpack, players are now using or "Crazy Advancements" addons. crazy craft addon mcpe patched