What should I do with this script?!

I have created a script that changes the state of the condition. It gives me a confusing error I cannot know.

Error:

17:47:54.005 - ServerScriptService.Script:105: 'then' expected near 'while'

Error code:

local replicated = game:GetService("ReplicatedStorage")
local statustag = replicated:WaitForChild("StatusTag")
local timer = replicated:WaitForChild("Timer")
local roundtime = 60 * 2

if game.Workspace.Win.GCT1.Touched:connect(function(hit)
	if hit.Parent:FindFirstChild("Humanoid") and game.Workspace.Win.GCT1.Enabled.Value == true then
		game.Workspace.Win.GCT1.Enabled.Value = false
		game.Workspace.Win.TQ1.Enabled.Value = true
		if replicated.Trk3.Value == 0 and replicated.Trk4.Value == 0 then
			replicated.Trk1.Value = 1
		elseif replicated.Trk3.Value == 2 and replicated.Trk4.Value == 1 or replicated.Trk3.Value == 1 and replicated.Trk4.Value == 2 then
			replicated.Trk1.Value = 3
		elseif replicated.Trk3.Value == 1 and replicated.Trk4.Value == 0 or replicated.Trk3.Value == 0 and replicated.Trk4.Value == 1 then
			replicated.Trk1.Value = 2
		end
	elseif hit.Parent:FindFirstChild("Humanoid") and game.Workspace.Win.GCT2.Enabled.Value == true then
		game.Workspace.Win.GCT2.Enabled.Value = false
		game.Workspace.Win.TQ2.Enabled.Value = true
		if replicated.Trk1.Value == 0 and replicated.Trk4.Value == 0 then
			replicated.Trk3.Value = 1
		elseif replicated.Trk1.Value == 2 and replicated.Trk4.Value == 1 or replicated.Trk1.Value == 1 and replicated.Trk4.Value == 2 then
				replicated.Trk3.Value = 3
		elseif replicated.Trk1.Value == 1 and replicated.Trk4.Value == 0 or replicated.Trk1.Value == 0 and replicated.Trk4.Value == 1 then
			replicated.Trk4.Value = 2
		end
	elseif hit.Parent:FindFirstChild("Humanoid") and game.Workspace.Win.GCT3.Enabled.Value == true then
		game.Workspace.Win.GCT3.Enabled.Value = false
		game.Workspace.Win.TQ3.Enabled.Value = true
		if replicated.Trk1.Value == 0 and replicated.Trk3.Value == 0 then
			replicated.Trk4.Value = 1
		elseif replicated.Trk1.Value == 2 and replicated.Trk3.Value == 1 or replicated.Trk1.Value == 1 and replicated.Trk3.Value == 2 then
			replicated.Trk4.Value = 3
		elseif replicated.Trk1.Value == 1 and replicated.Trk3.Value == 0 or replicated.Trk1.Value == 0 and replicated.Trk3.Value == 1 then
			replicated.Trk4.Value = 2
		end
	end
end)

while true do
--sort out what we need for a round
	wait(5)
	contestants = {}
	blue = {}
	yellow = {}
	green = {}
	for _, player in pairs(game.Players:GetPlayers()) do
		if player and player.Character then
			local humanoid = player.Character:WaitForChild("Humanoid")
			if humanoid and humanoid.Health > 0 and player.TeamColor.Name == "Lime green" then
				table.insert(contestants, player)
				table.insert(green, player)
			elseif humanoid and humanoid.Health > 0 and player.TeamColor.Name == "New Yeller" then
				table.insert(contestants, player)
				table.insert(yellow, player)
			elseif humanoid and humanoid.Health > 0 and player.TeamColor.Name == "Really blue" then
				table.insert(contestants, player)
				table.insert(blue, player)
			end
		end
	end
	if #contestants >= 3 then
		break
	else
		statustag.Value = "Waiting for Players"
		timer.Value = -1
	end
	for _, player in pairs(contestants) do
		local matchtag = Instance.new("StringValue")
		matchtag.Name = "MatchTag"
		matchtag.Parent = player.Character
	end
	if #blue > 0 then
		local bluerep = blue[math.random(1, #blue)]
		bluerep.Character:WaitForChild("Torso").CFrame = CFrame.new(game.Workspace.R62_Trk1.Model.VehicleSeat.Position + Vector3.new(0,0,0))
	elseif #yellow > 0 then
		local yellowrep = yellow[math.random(1, #yellow)]
		yellowrep.Character:WaitForChild("Torso").CFrame = CFrame.new(game.Workspace.R62_Trk3.Model.VehicleSeat.Position + Vector3.new(0,0,0))
	elseif #green > 0 then
		local greenrep = green[math.random(1, #green)]
		greenrep.Character:WaitForChild("Torso").CFrame = CFrame.new(game.Workspace.R62_Trk4.Model.VehicleSeat.Position + Vector3.new(0,0,0))
	end
	replicated.Timer = roundtime
	replicated.StatusTag.Value = "Game!"
	wait(1)
	replicated.StatusTag.Value = "Game Time:"
	while replicated.Timer.Value > 0 do
		wait(1)
		replicated.Timer.Value = replicated.Timer.Value - 1
	end
end

What should I do??