I thank all buyers and wish Merry Christmas and Happy New Year
Bugfix:
If you clicked on an NPC (Citizens, CloudnetNPC etc.) with a LuckyBox (Type: UseItem) and changed or left the server, the LuckyBox was removed from you and you lost it. To work around this bug, 2 experimental functions were added to config.yml:
Delay to remove the item
Item only when closing the LuckyBox GUI (most reliable method)