Trying to save multiple values from a table doesn't save but why?

Last time I didn't really get good answers so I'm hoping someone can help me this time.

I tried doing a "for loop" because everyone kept telling me to use that but I don't know how to though!

local DataStore = game:GetService("DataStoreService"):GetDataStore("PlayerWeaponStats")

game.Players.PlayerAdded:connect(function(player)
	
	local key = "user-" .. player.userId
	
	
	local store = DataStore:GetAsync(key)
	
	store[1] = {}
	
	local items = store[1]
	
	
	for i,v in pairs(player.Class.WeaponStats:GetChildren()) do
		if v:IsA("Configuration") then
			
			for _, c in pairs(v:GetChildren()) do
				
				if c:IsA("Configuration") then
					
					for _, l in pairs(c:GetChildren()) do
						
						if l:IsA("NumberValue") then
							
							table.insert(l.Value)
							
						end
						
					end
					
				end
				
			end
			
		end
	end
	
	print("Life")
	
	
		
end)

game.Players.PlayerRemoving:Connect(function(player)
	
	local items = {}
	
		for i,v in pairs(player.Class.WeaponStats:GetChildren()) do
		if v:IsA("Configuration") then
			
			for _, c in pairs(v:GetChildren()) do
				
				if c:IsA("Configuration") then
					
					for _, l in pairs(c:GetChildren()) do
						
						if l:IsA("NumberValue") then
							
							table.insert(l.Value)
							
						end
						
					end
					
				end
				
			end
			
		end
	end

	local key = "user-" .. player.userId
	
	DataStore:SetAsync(key, items)
	
	print("Ended")
end)