[solved] Anti Team Kill does not deal damage to anyone?

Hi there, I am trying to make an Anti-TeamKill script. I am using the PaintballGun as a template for that. The problem is that instead of not dealing damage to teammates, it does not deal damage to everyone. The code is pasted below:

ball = script.Parent
damage = 20
teamD = 0
connection = ball.Touched:connect(onTouched)

function onTouched(hit)
    if hit.Name == "Bullet" then return end
    local humanoid = hit.Parent:FindFirstChild("Humanoid")
    connection:disconnect()
    if humanoid ~= nil then
        tagHumanoid(humanoid)
        local target = game.Players:GetPlayerFromCharacter(hit.Parent)
        if hit.Parent ~= nil then
        if game.Players:GetPlayerFromCharacter(hit.Parent.Name) ~= nil then
            if target.TeamColor == script.Parent.creator.Value.TeamColor then
                humanoid:TakeDamage(teamD)
            elseif target.TeamColor ~= script.Parent.creator.Value.TeamColor then
                humanoid:TakeDamage(damage)
            end
            end
        end
        if hit.Name == "Head" then damage = damage * 3 end  
        humanoid:TakeDamage(damage)
    else
    end
    ball:remove()
end

function tagHumanoid(humanoid)
    -- todo: make tag expire
    local tag = ball:findFirstChild("creator")
    if tag ~= nil then
        local new_tag = tag:clone()
        new_tag.Parent = humanoid
        game.Debris:AddItem(new_tag, 1)
    end
end

wait(5)
ball:destroy()

end

wait(5)
ball:remove()

The script runs a function which test whether the target's TeamColor is the TeamColor of the shooter (creator). But instead of doing that it does not deal damage at all. If you find any problem please let me know what errors I have made. Thank you for reading :)