i created an item with custom model data texture (totem of undying) and i made it to run the CC command as OP cc open menu
(menu = the name of the menu i created in chest command) with inventory_left_click.
it gives me this error:

[01:42:03 WARN]: [ItemJoin] Plugin ItemJoin v5.2.5-RELEASE-b850 generated an exception while executing task 36697 java.lang.ArrayIndexOutOfBoundsException: null

everything is ok with right_click event while held, but somehow every other inventory click event won't work.

pls help! <3

solved, i was on creative while trying, but in survival everything works

Ah, I see, still a bug though. Thank you for letting me know!~ I should be able to fix that error to not appear in the next snapshot.