qualitey

Hey so I am making a server with KitPvP, Survival, and soon adding creative. I made the worlds for KitPvP and survival using multiverse and I added PerWorldInventory so they do not share inventories. I got it and restarted my server and it doesn't work. I traveled to all the worlds I created and I keep my inventory for all of them. I created the groups in the file for PerWorldInventory and I also removed the plugin and added it back. It does not work for me. I asked the minehut discord but they do not know either. So I'm really confused with this, what do I have to do to fix it.