The plugin CustomCrafting doesn't show up or have files in the file manager. This is probably a bug so please try to fix it. If it isn't on the newest version that might have caused it to not work.
PLUGIN LINK:
https://www.spigotmc.org/resources/customcrafting-advanced-custom-recipe-plugin-mysql-1-13-2-1-15-x-free.55883/