Saving a custom tycoon system

[Korthgreat0]

Hello! I made a custom tycoon system, however, I’m not sure how to go about saving it.
I tried a solution but it just gave me an error

Error: 104: Cannot store Array in data store. Data stores can only accept valid UTF-8 characters.

I just need a few boolvalues to save when a player leaves and load when a player joins.

Here is the code I use right now (The leaderstats are created after the game starts.)

local data = dss:GetDataStore("example")

function saveprogress(location)

	local load = {}

	for i,v in pairs(location:GetChildren()) do
		table.insert(load,v:Clone())
	end

	return load;

end

function loadprogress(load,location)

	for i,v in pairs(load) do
		v.Parent = location
	end

end

game.Players.PlayerAdded:Connect(function(p)
	local motherfolder = Instance.new("Folder")
	motherfolder.Parent = p:WaitForChild("leaderstats")
	motherfolder.Name = "Purchased"
	for _, v in pairs (workspace.House.Buttons:GetChildren()) do
		local value = Instance.new("BoolValue")
		value.Parent = motherfolder
		value.Name = v.Name
	end

	local key = "key-"..p.UserId

	local save = data:GetAsync(key)

	if (save == nil) then
		data:SetAsync(key,saveprogress(motherfolder))
	else
		loadprogress(save,motherfolder)
	end
end)

game.Players.PlayerRemoving:Connect(function(p)
	local key, motherfolder = "key-".. p.UserId ,p.leaderstats.Purchased
	data:SetAsync(key,saveprogress(motherfolder))
end)

[azqjanna]

As the error says, stores only store text. You need to serialize your table into text using JSONEncode