Automatic Ban System not working

Help and Feedback Scripting Support
#1

I roughly codded this server script using a community tutorial but it doesn’t seem to be working and I cannot figure out why. Any help is appreciated!!

local DataStoreService = game:GetService("DataStoreService")
local BannedUsers = DataStoreService:GetDataStore("BannedUsers")
local Players = game:GetService("Players")
local BlacklistedWords = {
	"test"
}

local function Ban(Player)
	local Success, Error = pcall(function()
		BannedUsers:SetAsync(tostring(Player.UserId))
	end)
end

game.Players.PlayerAdded:Connect(function(Player)
	local IsBanned = Ban(Player.UserId)
	
	if IsBanned ~= nil then
		Player:Kick("You have been banned.")
	end

	Player.Chatted:Connect(function(ChattedMessage)
		local Message = string.lower(ChattedMessage)
		if table.find(BlacklistedWords, Message) then
			Ban(Player.UserId)
			Player:Kick("You have been banned.")
		end
	end)
end)
#2

in the Ban function after the entire pcall function, put:

return Error
#3

aren’t you supposed to put GetAsync

#4

The ban function is used to set the player’s user id into the datastore in the 5th line from the end

#5 
local DataStoreService = game:GetService("DataStoreService")
local BannedUsers = DataStoreService:GetDataStore("BannedUsers")
local Players = game:GetService("Players")
local BlacklistedWords = {
	"test"
}

local function BanPlayer(UserId)
	local Success, Error = pcall(function()
		BannedUsers:SetAsync(tostring(UserId), true)
	end)
end

local function CheckIfBanned(UserId)
	local Success, Error = pcall(function()
		return BannedUsers:GetAsync(tostring(UserId))
	end)

	if not Success then
		local Attempts = 0

		repeat task.wait(1)
			Success, Error = pcall(function()
				return BannedUsers:GetAsync(tostring(UserId))
			end)

			Attempts += 1
		until Success or Attempts >= 5
	end

	if Success then
		return Error
	end
end

game.Players.PlayerAdded:Connect(function(Player)
	local IsBanned = CheckIfBanned(Player.UserId)

	if IsBanned ~= nil then
		Player:Kick("You have been banned.")
	end

	Player.Chatted:Connect(function(ChattedMessage)
		local Message = string.lower(ChattedMessage)
		if table.find(BlacklistedWords, Message) then
			BanPlayer(Player.UserId)
			Player:Kick("You have been banned.")
		end
	end)
end)
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#7