RemoteEvent doesn't change the player's team?

Hi, i made a script where it's supposed to change the player's team whenever he dies, but it doesn't work. Can someone help? Main Handler

local function playerDied(player)
	print("Returning "..player.Name.." to lobby.")
	local plr = game.Players:FindFirstChild(player.Name)
	plr.Team = lteam
end
game.ReplicatedStorage.Death.OnServerEvent:Connect(playerDied)

Client Handler

local hum = game.Players.LocalPlayer.Character:WaitForChild("Humanoid")
while wait() do
	if hum.Health == 0 then
		game.ReplicatedStorage.Death:FireServer()
	end
end

Okay, a few things:

Firstly: local plr = game.Players:FindFirstChild(player.Name) is a bit rhetorical - just use the player variable.

Second: plr.Team = 1team will immediately error because it is a malformed pathway. Access 1team as such >> game.Teams["1team"].

Third: Make sure that BOTH teams are archivable - if they are not, your code will not work.

Fourth: Though using a while loop will not break your script in this instance - it is incredibly inefficient and there is a thousand better ways to handle Humanoid death.

With everything but the fourth point amended - here is your fixed code:

Server:

local function playerDied(plr)
	print("Returning "..plr.Name.." to lobby.")
	plr.Team = game.Teams["1team"]
end

game.ReplicatedStorage.Death.OnServerEvent:Connect(playerDied)

Client:

repeat wait() until game.Workspace:FindFirstChild(game.Players.LocalPlayer.Name) ~= nil
local hum = game.Players.LocalPlayer.Character:WaitForChild("Humanoid")

while wait() do
	if hum.Health == 0 then
		game.ReplicatedStorage.Death:FireServer()
	end
end