Script Works when testing but not online when published?

I have a bow script that works when i test play it in studio, but when i publish the game and play it online the GUI doesn't show up and the bow doesn't work. Why is that? Thanks for any help and suggestions!

local TOOL = script.Parent

local DAMAGE = 30
local RANGE = 50
local REST_TIME = 0.5
local CRIT_MULT = 2

local DEBOUNCE = true

local AMMO_TYPE = "ARROW"
local AMMO_BOX = TOOL.Ammo
local AMMO_GUI = TOOL.ScreenGui
local AMMO_NUM_LABEL = AMMO_GUI.Frame.TotalAmmoLabel
local AMMO_TYPE_LABEL = AMMO_GUI.Frame.AmmoTypeLabel
local CURRENT_SHOT = nil

function getPC()
    local char = TOOL.Parent
    local player = game.Players:GetPlayerFromCharacter(char)

    return player, char
end

function humanCheck(part)
    local parent = part.Parent

    if parent == nil then
        return false
    end

    local humanoid = parent:findFirstChild("ANIMAL")

    if humanoid ~= nil then
        return true
    end

    return false
end

function distanceCheck(part)
    local player, char = getPC()
    local head = char.Head

    local dist = (head.Position - part.Position).magnitude

    return (dist < RANGE)
end

function ammoCheck(part)
    local typeValue = part:findFirstChild("AmmoType")

    if typeValue ~= nil then
        return (typeValue.Value == AMMO_TYPE)
    end
end

function hasAmmo()
    local ammo = AMMO_BOX:GetChildren()
    local ammoNum = #ammo

    return (ammoNum > 0)
end

function canHit(part)
    local bool = false

    bool = (bool or humanCheck(part))
    bool = (bool and distanceCheck(part))
    bool = (bool and hasAmmo())

    return bool
end

function canPickup(part)
    local bool = false

    bool = (bool or ammoCheck(part))

    return bool
end

function attack(body_part, human)
    body_part = body_part.Name

    local health = human.HEALTH

    local final_damage = DAMAGE + CURRENT_SHOT.Damage.Value

    if body_part == "Head" or body_part == "Torso" then
        health.Value = health.Value - (final_damage * CRIT_MULT)
    end

    if body_part == "Right Arm" or body_part == "Left Arm" then
        health.Value = health.Value - (final_damage / CRIT_MULT)
    end

    if body_part == "Right Leg" or body_part == "Left Leg" then
        health.Value = health.Value - (final_damage)
    end
end

function updateAmmo()
    local ammo = AMMO_BOX:GetChildren()
    local ammo_num = #ammo

    CURRENT_SHOT = ammo[1]

    if CURRENT_SHOT ~= nil then
        AMMO_NUM_LABEL.Text = "Ammo: "..ammo_num
        AMMO_TYPE_LABEL.Text = "Current: "..CURRENT_SHOT.Name
    else
        AMMO_NUM_LABEL.Text = "No ammo!"
        AMMO_TYPE_LABEL.Text = ""
    end
end

function slash()
    local s = Instance.new("StringValue")
    s.Name = "toolanim"
    s.Value = "Slash"
    s.Parent = TOOL
end

function fire(v)


    local vCharacter = TOOL.Parent

    local vPlayer = game.Players:playerFromCharacter(vCharacter)


    local missile = TOOL.Bolt:Clone()

    -- find firing direction

    local v1 = -TOOL.Bolt.CFrame.lookVector.unit
    local v2 = v.unit


    local dot = (v1.x * v2.x) + (v1.y * v2.y) + (v1.z * v2.z)
    local ang = math.acos(dot)

    -- test if in cone
    if (ang < 3.14 / 8) then

    else
        -- not in cone, find projection
         --n = v1 x v2
        --local n = Vector3.new(v1.y * v2.z - v1.z * v2.y, v1.z * v2.x - v1.x * v2.z, v1.z * v2.y - v1.y * v2.x)

        --return
    end


    --missile.CFrame = Tool.Bolt.CFrame + (Tool.Bolt.CFrame.lookVector * -8)
    missile.CFrame = TOOL.Bolt.CFrame + (v * 8)

    missile.Transparency = 0

    missile.Velocity =  v * 150

    missile.Name = "CrossbowBolt"

    missile.Elasticity = 0


    local force = Instance.new("BodyForce")

    force.force = Vector3.new(0,150,0)

    force.Parent = missile

    missile.BodyGyro.cframe = CFrame.new(Vector3.new(0,0,0), -TOOL.Bolt.CFrame.lookVector.unit)
    missile.BodyGyro.maxTorque = Vector3.new(5e5,5e5,5e5)



    local new_script = script.Parent.CrossbowBoltScript:clone()

    new_script.Disabled = false

    new_script.Parent = missile



    local creator_tag = Instance.new("ObjectValue")

    creator_tag.Value = vPlayer

    creator_tag.Name = "creator"

    creator_tag.Parent = missile


    missile.Parent = game.Workspace


end


TOOL.Enabled = true

function onActivated()


    if not TOOL.Enabled then

        return

    end

    TOOL.Enabled = false
    end

function onButton1Down(mouse)
    if not DEBOUNCE then return end

    DEBOUNCE = false

    local character = TOOL.Parent;
    local humanoid = character.Humanoid
    local targ = mouse.Target
    local targetPos = humanoid.TargetPoint
    local lookAt = (targetPos - character.Head.Position).unit


    if canHit(targ) then
        local enemy = targ.Parent
        local human = enemy.ANIMAL

        attack(targ, human)

        CURRENT_SHOT:remove()
        fire(lookAt)

    wait(2)

    TOOL.Enabled = true

        updateAmmo()    
    end

    if canPickup(targ) then
        targ.Parent = AMMO_BOX

        updateAmmo()
    else
        wait(REST_TIME)
    end

    DEBOUNCE = true
end

function onEquipped(mouse)
    local player, char = getPC()

    AMMO_GUI.Parent = player.PlayerGui
    updateAmmo()

    AMMO_BOX.Parent = player.Backpack

    mouse.Button1Down:connect(function()
        onButton1Down(mouse)
    end)
end

function onUnequipped()
    local player, char = getPC()

    AMMO_GUI.Parent = TOOL

    AMMO_BOX.Parent = TOOL
end


script.Parent.Activated:connect(onActivated)
TOOL.Equipped:connect(onEquipped)
TOOL.Unequipped:connect(onUnequipped)