How can I stop this simple script from breaking?

repstorage.RoundTag.Changed:connect(function(value)
    if value == true then
        if repstorage.GameRound.Value == "Deathmatch" then
            for _, player in pairs(game.Players:GetPlayers()) do
                player.Character:WaitForChild("Humanoid").Died:connect(function()
                    if player.Character.Humanoid:FindFirstChild("creator") then
                        local tag = player.Character.Humanoid.creator
                        local tColor = player.TeamColor
                        local kColor = tag.Value.TeamColor
                        if not kColor then return end
                        if not tColor then return end
                        if tColor ~= kColor then
                            if kColor == BrickColor.new("Lime green") then
                                greenscore.Value = greenscore.Value + 1
                            elseif kColor == BrickColor.new("New Yeller") then
                                yellowscore.Value = yellowscore.Value + 1
                            end
                        end
                    end
                end)
            end
        end
    end
end)

I have this script which checks if the round value changes then it sets off. So the game is 5 minutes long, and when a person dies it gives the team + 1 point. The problem is that it gives you a point but if you kill someone again then you dont get the points. How come this dosent work? There is no outpout errors