why does it not print out the boolean value?

game.Players.PlayerAdded:connect(function(plr)	
	local shop = plr.PlayerGui:WaitForChild("SHOP")
	local DaggerB = shop.Frame.Weapons.Dagger
	local DaggerBtext = DaggerB:WaitForChild("Info").Text
	local DaggerOwned = DaggerB:WaitForChild("Owned")
	DaggerOwned.Value = DaggerDS:GetAsync(Id) or false
 print("Dagger Owned = "..DaggerOwned.Value)
end)

error Error attempt to concatenate field 'Value' (a boolean value) i need this for a data store.

--if you can be bothered to read it--
local DS = game:GetService("DataStoreService")
local DaggerDS = DS:GetDataStore("DaggerDS")

game.Players.PlayerAdded:connect(function(plr)	
	local shop = plr.PlayerGui:WaitForChild("SHOP")
	local DaggerB = shop.Frame.Weapons.Dagger
	local DaggerBtext = DaggerB:WaitForChild("Info").Text
	local DaggerOwned = DaggerB:WaitForChild("Owned")
	local Id = plr.UserId
	DaggerOwned.Value = DaggerDS:GetAsync(Id) or false
 print("Dagger Owned = "..DaggerOwned.Value)	
	
	if DaggerOwned.Value == false then
		DaggerBtext = "Price: 0"
	else
		DaggerBtext = "OWNED"
	end	
	
	DaggerOwned.Changed:Connect(function()
		DaggerDS:SetAsync(Id, DaggerOwned.Value)
		 print(DaggerOwned.Value)
	end)
end)