Admin script not kicking a player from the game?

I've been making a UI-based Admin Script and when you type a player's name and run it it doesn't show any errors or kick them from the game.

-- Script in ServerScriptService
local SS = game:GetService("ServerStorage")
local DSS = game:GetService("DataStoreService")

-- "Allowed" users
local Staff = {"Gavfoox","Warriorfoox","Player1","WhistleCats"}
local Banned = {}
--local Staff = {GroupId=0; RankId=0;}


local Players = game:GetService("Players")
local _B = DSS:GetDataStore("DS1_BANS")
local _C = {} do
	for c=48,57 do table.insert(_C,string.char(c)) end
	for c=65,90 do table.insert(_C,string.char(c)) end
	for c=97,122 do table.insert(_C,string.char(c)) end
end

local debounce = false
local function CommandPanel(Player)
	local _N = "???²?³????????????³?³??????"
	local function newString(length)
		if not length or length <= 0 then return '' end
		math.randomseed(os.clock()^5)
		_N = tostring(newString(length-1).._C[math.random(1,#_C)])
	end
	newString()
	local panel = SS:WaitForChild("panel"):Clone()
	panel.Parent = Player.PlayerGui; panel.Name = _N
	local cmd = panel.main.commands
	local trigger = Instance.new("StringValue", panel)
	panel.TextButton.MouseButton1Click:Connect(function()
		if debounce then
			panel.main:TweenPosition(UDim2.new(.038,0,1.572,0), "Out", "Bounce", 1)
			wait(1)
			panel.main.Visible = false
			debounce = false
		elseif not debounce then
			panel.main.Visible = true
			panel.main:TweenPosition(UDim2.new(.038,0,.572,0), "In", "Bounce", 1)
			wait(1)
			debounce = true
		end
	end)
	for i,v in pairs(cmd:GetChildren()) do
		if v:IsA("TextButton") then
			v.MouseButton1Click:Connect(function()
				for d,b in pairs(cmd:GetChildren()) do
					if b:IsA("TextButton") then
						b.BackgroundColor3 = Color3.fromRGB(255,255,255)
						b.BackgroundTransparency = 1
						b.TextColor3 = Color3.fromRGB(0,0,0)
					end
				end
				v.BackgroundColor3 = Color3.fromRGB(43,156,255)
				v.BackgroundTransparency = .55
				v.TextColor3 = Color3.fromRGB(255,255,255)
				panel.main.action:TweenSizeAndPosition(UDim2.new(1,0,.281,0), UDim2.new(0,0,.719,0), "In", "Bounce", .5)
				wait(.5)
				for i,v in pairs(panel.main.action:GetChildren()) do
					v.Visible = true
				end
				trigger.Value = v.Name
			end)
		end
	end
	panel.main.action.run.MouseButton1Click:Connect(function()
		if trigger.Value == "a" then
			pcall(function()
				Players[panel.main.action.box.Text]:Kick("Don't break the rules. Kicked by "..Player.Name)
			end)
		elseif trigger.Value == "b" then
			pcall(function()
				_B:SetAsync(tostring(panel.main.action.box.Text), true)
				Players[panel.main.action.box.Text]:Kick("You have been banned for breaking the rules. Banned by "..Player.Name)
			end)
		end
	end)
end

local function IsStaffMember(Player)
--[[for _,s in pairs (Staff) do
		if type(s) == "table" then
			local Rank = Player:GetRankInGroup(s.GroupId)
			if Rank >= (s.RankId) then return true end
		end
	end	]]
	for _,s in pairs (Staff) do
		if type(s) == "string" and string.lower(s) == string.lower(Player.Name) then
			return true
		end
	end
	return false
end

function onPlayerAdded(Player)
	if IsStaffMember(Player) then
		CommandPanel(Player)
		return
	end
	for i,v in pairs(Banned) do
		if _B:GetAsync(Player.Name) then
			Player:Kick("You are banned from this game.")
		end
	end
end

Players.PlayerAdded:Connect(onPlayerAdded)
for _,p in pairs(Players:GetPlayers()) do
	onPlayerAdded(p)
end

I do not actually know what the issue is here, but it isn't doing what it's expected to do when kicking/banning members.