Table.insert not working

On line 124, apparently the insert will insert nothing even though the values exist, and the loop below says that the inserted value DOES exist. However, in the print statement on line 129, it says it doesn’t exist. Through testing, I can confirm that it somehow doesn’t exist.

With this datastore, I am trying to save someone’s owned sword and its equipped/unequipped value. Also, it saves two currencies: Tix and Skulls.

I am rather new to datastores so the solution could be quite simple and I just didn’t see it.

local DataStoreService = game:GetService("DataStoreService")
local dataStore = DataStoreService:GetDataStore("sad")
local swordsave = {}

local function saveData(player)
	
	local tableToSave = {
		player.leaderstats.Skulls.Value;
		player.leaderstats.Tix.Value;
		swordsave[player.UserId]
	}
	if swordsave[player.UserId] ~= nil then
		for i,v in pairs(swordsave[player.UserId]) do
			print(player.Name, v)
		end
	end
	local success, err = pcall(function()
		print("saved")
		dataStore:SetAsync(player.UserId, tableToSave)
	end)
end

game.Players.PlayerAdded:Connect(function(player)
	table.insert(swordsave, player.UserId)
	swordsave[player.UserId] = {}
	print(typeof(swordsave[player.UserId]))
	
	local playertools = Instance.new("Folder", game.ServerStorage.Tool)
	playertools.Name = player.Name

	local leaderstats = Instance.new("Folder")
	leaderstats.Name = "leaderstats"
	leaderstats.Parent = player

	local Skulls = Instance.new("IntValue")
	Skulls.Name = "Skulls"
	Skulls.Parent = leaderstats

	local Tix = Instance.new("IntValue")
	Tix.Name = "Tix"
	Tix.Parent = leaderstats

	local data

	local success, err = pcall(function()
		
		data = dataStore:GetAsync(player.UserId)

	end)

	if success and data then
		Skulls.Value = data[1]
		Tix.Value = data[2]
		if data[3] ~= nil then
			swordsave = data[3]
		end
		if swordsave[player.UserId] ~= nil then
			for i,v in pairs(swordsave[player.UserId]) do
				print(player.Name, v)
			end
		end
	end
	print(typeof(swordsave[player.UserId]))
	local playertools = game.ServerStorage.Tool[player.Name]
	if swordsave[player.UserId] ~= nil then
		for i,v in pairs(swordsave[player.UserId]) do
			if typeof(v) == "string" then
				local str = string.split(v, " ")
				local sword = str[1]
				local file = str[2]
				game.ReplicatedStorage:WaitForChild("WeaponStorage"):WaitForChild(sword):Clone().Parent = game.ServerStorage:WaitForChild(player.Name):WaitForChild(file)
				game.ReplicatedStorage.DataStoreUsage.DTS:FireClient(player, swordsave, str)
			end
		end
	end
end)

game.Players.PlayerRemoving:Connect(function(player)
	saveData(player)
end)

game:BindToClose(function()
	for _, player in pairs(game.Players:GetPlayers()) do
		local success, err  = pcall(function()
			saveData(player)
		end)
	end
end)

local db = false

game.ReplicatedStorage.DataStoreUsage.val.OnServerEvent:Connect(function(player, val, boolen)
	local uoe
	local filex = swordsave
	if filex[tostring(val) .. " Equipped"] ~= nil then
		print("Unequip not worko???")
		uoe = " Equipped"
	elseif filex[tostring(val) .. " Unequipped"] ~= nil then
		print("Equip not worko???")
		uoe = " Unequipped"
	end
	if filex[tostring(val) .. " Unequipped"] == nil and filex[tostring(val) .. " Equipped"] == nil then
		print("Added new")
		uoe = " Equipped"
	end
	if filex ~= nil and val ~= nil and uoe ~= nil and boolen ~= nil then
		for i,v in pairs(filex) do
			local dont = false
			if filex[tostring(val) .. " Unequipped"] ~= nil then
				print("deleted")
				local found = table.find(filex, val .. " Unequipped")
				filex[found] = nil
				dont = true
			end
			if filex[tostring(val) .. " Equipped"] ~= nil then
				if dont == false then
					print("deleted")
					local found = table.find(filex, val .. " Equipped")
					filex[found] = nil
				end
			end
			dont = false
		end
		table.insert(filex, tostring(val) .. uoe)
		print("insertted ", filex, tostring(val) .. uoe)
		for i,v in pairs(filex[player.UserId]) do
			print(v)
		end
		print(filex[tostring(val) .. uoe])
	end
end)
filex[tostring(val) .. uoe]

Here you are treating tostring(val)..uoe like an index on line 129 but here on line 124

table.insert(filex, tostring(val) .. uoe)

you are treating it like a value.
It looks like you want to treat it like an array based on the rest of your code, and if that’s the case you need to use table.find instead.

print(table.find(filex, tostring(val) .. uoe))

You’ll need to do that wherever you’re trying to treat filex like a dictionary.