Could you help with Event:FireAllClients?

So I have a script that when everyone on a certain team dies, the script loads everyone's character. I decided to make it so when they all die, a GUI pops up saying that the bad dude won. But the GUI doesn't pop up, and there's no error message. Could you please see what's wrong with the script? Any help is appreciated! Server Script

wait(5)
local plrs = game.Players:GetChildren()
local chill = script.chill.Value
while true do
    wait(.1)
for _,v in pairs(game.Players:GetChildren()) do
if v.Team.Name == "Survivors" and chill == false then
    local char = v.Character
    if char ~= nil then
        if char.Humanoid.Health <=0 then
            print(v.Name.." is dead")
            chill = true
            game.ReplicatedStorage.ESallyhasWon:FireAllClients()
        else
            print(v.Name.." is not dead")
        end
    end
end
end
end

Local Script

game.ReplicatedStorage.ESallyhasWon.OnClientEvent:Connect(function()
for _, v in pairs(game.Players:GetChildren()) do
    if v.Team.Name == "Earthworm Sally" then
        local userID = v.UserId
        script.Parent.Parent.Visible = true
        script.Parent.Image = "https://web.roblox.com/Thumbs/Avatar.ashx?x=100&y=100&Format=Png&userid="..userID
    end
end
end)