Why won't my text show?

local gui = game.StarterGui.level

game.Players.PlayerAdded:connect(function(player)
	
gui.Frame.PlayerFrame.PlayerImage.Image = "http://www.roblox.com/Thumbs/Avatar.ashx?x=100&y=100&Format=Png&username="..player.Name
gui.Frame.plrname.Text = tostring(player.Name)
gui.Frame.Level.Text = ("Level "..game.Workspace.Utilities.Plugins["Bloxcade Center"].Level.Value)
gui.Frame.Points.Text = ("Points: "..game.Workspace.Utilities.Plugins["Bloxcade Center"].Points.Value)

local rankclone = game:GetService("Lighting").Rank.Rank:Clone()
local adminclone = game:GetService("Lighting").Rank.Admin:Clone()
local playername = player.Name

if playername == "uwot_m9" then
	adminclone.Parent = game.Workspace:WaitForChild(playername).Head
else
	rankclone.Parent = game.Workspace:WaitForChild(playername).Head
end

while true do
	wait()
gui:WaitForChild("Frame"):WaitForChild("Background"):WaitForChild("CurrentRank").Text = tostring(script.Parent.Parent.Plugins["Bloxcade Center"].Level.Value)
gui:WaitForChild("Frame"):WaitForChild("Background"):WaitForChild("NextRank").Text = tostring(script.Parent.Parent.Plugins["Bloxcade Center"].Level.Value + 1)
end
end)

game.Players.PlayerAdded:connect(function(player)
	local playername = player.Name
	game.Workspace:WaitForChild(playername).Head:WaitForChild("Rank").RankNumber.Text = "Level " .. tostring(game.Workspace.Utilities.Plugins["Bloxcade Center"]:WaitForChild("Level").Value)
end)

The problem is with lines 22 and 23, the values don't show on the TextLabel...help?

But when I start a solo server, the TextLabels dont change, but when I look in explorer, it says they have a different Text than shown....?