In the most recent version of essentials (v20.1) this breaks the adding of new pokegear items, I managed to fix this on my project by removing the code starting with
and changing the MenuHandler for the Jukebox in UI_Pokegear to match what the enhanced jukebox uses
Could you update this to be compatible with the most recent version of pokemon essentials (v20.1)? Currently it crashes because of the requirements for the v20 hotfixes plugin, which is now integrated into v20.1