Datastores saving issue

[TheDeadBoneDev (Dead)]

So i’ve recently been having issues with my datastore script which is throwing the error 104: Cannot store Dictionary in data store. Data stores can only accept valid UTF-8 characters. I have no idea of what this means or what could be triggering it and i’ve ran out of ideas to fix it. May anyone help me?
Code:

Players.PlayerRemoving:Connect(function(player)
	local success, errormessage = pcall(function()
		local allData = {}
		allData["Level"] = player.Level.Level.Value
		allData["Exp"] = player.Level.Exp.Value
		allData["ExpNeeded"] = player.Level.NeededExp.Value
		allData["PostHalloween"] = player.Level.PostHalloween.Value
		allData["VIP"] = player.Level.VIPClaimed.Value
		allData["CurrentGadget"] = player.Gadget
		allData["OwnedGadgets"] = {}
		
		for _, ownedGadgets in ipairs(player.OwnedGadgets:GetChildren()) do
			table.insert(allData["OwnedGadgets"], ownedGadgets.Name.."_"..tostring(ownedGadgets.Value))
		end
		
		LevelsStore:SetAsync(player.UserId.."LevelData", allData) 
		OrderedStore:SetAsync(player.UserId, allData["Level"])
	end)
	
	if success then	
		print("Levels data was saved!")
	else	
		warn(errormessage)	
	end
	
end)

Also, this problem didn’t appear until i added the OwnedGadgets table, so it’s gotta be something relating to it. What could be causing this?

[4SHN (help ivelaidafeweggs)]

it might be because player.Gadget is an instance rather than a value like string

[TheDeadBoneDev (Dead)]

Yeah, this ended up fixing it, thanks for the help lmao