[SOLVED] What is wrong with this Data Store Script?

I made this exact thing. Here's my code edited for your needs:

local key = 'weps'
local exclude = {
	'StarterSword';
}
-- I suggest placing the name of the initial sword here to
-- prevent dupes. Also place VIP tool(s) (if any) names here

game.Players.PlayerAdded:connect(
	function(p)

		local weps = data:GetAsync(p.userId..'_'..key)

		if weps then -- if it has already been saved
			for _,v in pairs(weps) do
				if game.ReplicatedStorage:FindFirstChild(v) then
					game.ReplicatedStorage[v]:clone().Parent = p.StarterGear
				end
			end
		end

		p.StarterGear.ChildAdded:connect(
			function(c)
				local tools = { }
				for _,v in pairs(p.StarterGear:GetChildren()) do
					local add = true
					for _,c in pairs(excluded) do
						if v.Name ~= c.Name then
							add = false
						end
					end
					if add then
						table.insert(mo, v.Name)
					end
				end
				data:SetAsync(p.userId..'_'..key),  tools) 
			end
		)
	end
)

The result is a table with the names of the tools and/or hopperbins.

Note: This script saves an the tools whenever an item is added to StarterGear. When giving a player a tool you want them to keep, I suggest placing it in their Backpack as well as their StarterGear. Doing so makes it so you don't need to keep re-adding the tools upon dying/respawning.