Help with a bullet script problem?

So, it seems that this only happens in online mode, the problem is, every time you fire the bullet, it says that crit, mind, and maxd are not valid members of the script. It works if I add a wait, but then you have to fire from a far distance, or else the bullet does nothing.

ball = script.Parent --The bullet
crit = script.Crit.Value -- A value inside the script
mind = script.MinDMG.Value -- Same as above
maxd = script.MaxDMG.Value -- Same-o
damage = math.random(mind,maxd)
if script.Effect.Value == 1 then
    clonedth = script.Effect.Fire:Clone()
    clonedth.Enabled = true
    clonedth.Parent = ball
elseif script.Effect.Value == 2 then
    clonedth = script.Effect.Cor:Clone()
    clonedth.Enabled = true
    clonedth.Parent = ball
elseif script.Effect.Value == 3 then
    clonedth = script.Effect.Spark:Clone()
    clonedth.Enabled = true
    clonedth.Parent = ball
end

function onTouched(hit)
    local humanoid = hit.Parent:FindFirstChild("HP")
    local shield = hit.Parent:FindFirstChild("SP")

    if shield ~= nil and shield.Value > 0 then
        tagHumanoid(shield)
        if hit.Name == "Head" then
            shield.Value = shield.Value - damage * crit
        elseif hit.Name == "Torso" then
            shield.Value = shield.Value - damage * 1.1
            if script["Effect"].Value == 1 then
                local chance = math.random(1,2)
                if chance == 1 then
                    local clonedth2 = script["Effect"].Fire2:Clone()
                    clonedth2.Enabled = true
                    clonedth2.Parent = hit
                    for i = 1, 10 do
                        wait(0.5)
                        shield.Value = shield.Value - damage / 7.5
                end
                clonedth2:Destroy()
                end
            elseif script["Effect"].Value == 2 then
                local chance = math.random(1,2)
                if chance == 1 then
                local clonedth2 = script["Effect"].Cor2:Clone()
                clonedth2.Enabled = true
                clonedth2.Parent = hit
                for i = 1, 10 do
                    wait(0.5)
                    shield.Value = shield.Value - damage / 2
                end
                clonedth2:Destroy()
                end
            elseif script["Effect"].Value == 3 then
                local chance = math.random(1,2)
                if chance == 1 then
                local clonedth2 = script["Effect"].Spark:Clone()
                clonedth2.Enabled = true
                clonedth2.Parent = hit
                for i = 1, 10 do
                    wait(0.5)
                    shield.Value = shield.Value - damage / 7.5
                end
                clonedth2:Destroy()
                end
            end
            else
            shield.Value = shield.Value - damage
        end

    connection:disconnect()
    ball.Parent = nil
    elseif humanoid ~= nil then
        tagHumanoid(humanoid)
        if hit.Name == "Head" then
            humanoid.Value = humanoid.Value - damage * crit
        elseif hit.Name == "Torso" then
            humanoid.Value = humanoid.Value - damage * 1.1
            if script["Effect"].Value == 1 then
                 local chance = math.random(1,2)
                if chance == 1 then
                    local clonedth2 = script["Effect"].Fire2:Clone()
                    clonedth2.Enabled = true
                    clonedth2.Parent = hit
                    for i = 1, 10 do
                        wait(0.5)
                        humanoid.Value = humanoid.Value - damage / 5
                end
                clonedth2:Destroy()
                end
            elseif script["Effect"].Value == 2 then
                    local chance = math.random(1,2)
                if chance == 1 then
                local clonedth2 = script["Effect"].Cor2:Clone()
                clonedth2.Enabled = true
                clonedth2.Parent = hit
                for i = 1, 10 do
                    wait(0.5)
                    humanoid.Value = humanoid.Value - damage / 7.5
                end
                clonedth2:Destroy()
                end
            elseif script["Effect"].Value == 3 then
                local chance = math.random(1,2)
                if chance == 1 then
                local clonedth2 = script["Effect"].Spark:Clone()
                clonedth2.Enabled = true
                clonedth2.Parent = hit
                for i = 1, 10 do
                    wait(0.5)
                    humanoid.Value = humanoid.Value - damage / 7.5
                end
                clonedth2:Destroy()
                end
            end
            else
                humanoid.Value = humanoid.Value - damage
        end

    connection:disconnect()
    ball.Parent = nil
    end
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
    end
end


function untagHumanoid(humanoid)
    if humanoid ~= nil then
        local tag = humanoid:FindFirstChild("creator")
        if tag ~= nil then
            tag.Parent = nil
        end
    end
end

connection = ball.Touched:connect(onTouched)

wait(8)
ball.Parent = nil