EpicItems will now be using NoteBlockAPI as a dependency, you should install it as it will add a lot of user quality. All you have to do is download this:

https://www.spigotmc.org/resources/noteblockapi.19287/

And drop it in the plugins folder and you're done!

or you can opt out by going in EpicItems config.yml file and set 'CheckForNoteBlockAPI' to 'false'