Help With Damage Script?

local debounce = true
function ot(part)
    local humanoid = part.Parent:FindFirstChild()
    if humanoid ~= nil then
        if game.Players:GetPlayerFromCharacter(humanoid.Parent).TeamColor == BrickColor.new("Bright blue") then
            if debounce == true then
            humanoid:TakeDamage(50)
            debounce = false
            end
        end
    end
end

script.Parent.Touched:connect(ot)

This script is supposed to have someone take 50 damage when they touch this, only if they're on the Bright blue team. It doesn't work. Some help?