Bukkit

Hello. I've been trying to solve it and I know it's a very good plugin. I searched in the configs everything related to the minecarts and I false it. I noticed that sometimes it is not deleted, but at some point it is deleted. It is a form of endermans that uses a minecart with an endermite in it, and in a moment it is deleted. can i be helped maybe I didn't make it configurable correctly. I just want to delete the items that are on the floor.