Whenever old player joins his inventory is reset

pls help me out i faced this problem many times whenever old player joins he is reset his inventory is totally cleared i m using these plugins -

nLogin, ClearLag, AutomaticBroadcast, ViaVersion, HolographicDisplays, CratesPlus, LuckPerms, Vault, Multiverse-Core, WorldEdit, Essentials, EssentialsProtect, EssentialsChat, IridiumSkyblock, EssentialsGeoIP, BedWars, EconomyShopGUI, Multiverse-Portals, EssentialsSpawn, WorldGuard, DiscordSRV, GSit, NexEngine, GriefPrevention

pls help me if u know how to fix this pls reply me

I checked all plugins and I didn't got anything. It's weird but I don't know how it could cause

Quote from Roman

How did you check them?

yes i check all things

Now I tried it by using multiverse inventories and changed the config of it "join_on_leave_on : true" this means that player when leave and join his data will be saved but it helped me little bit