FireClient: player argument must be a Player object?

Error Is On Line 171,

FireClient: player argument must be a Player object

Script 'Players.Jomeliter.Backpack.Punch.Server', Line 171

The Idle animation is constantly playing and doesn't stop!?

Server Script

local Tool = script.Parent
local Remote = Tool:WaitForChild("Remote")
local Handle = Tool:WaitForChild("Handle")
local Mesh = Handle:WaitForChild("Mesh")



local Equipping = false
local Grip = nil

local StraightMeshData = "http://www.roblox.com/asset/?id=193827643"
local StraightGripPos = Vector3.new(0, 0, 1.5)
local BentMeshData = "http://www.roblox.com/asset/?id=193827593"
local BentGripPos = Vector3.new(0, 0.6, 0.5)
local Bent = true

local AttackAble = true
local AttackRestTime = 1
local AttackDamage = 15
local AttackVictims = {}
local AttackWindow = 0.66
local AttackDamaging = false
local AttackWindup = 0.1

function switchBend()
    if Bent then
        Mesh.MeshId = StraightMeshData
        --Tool.GripPos = StraightGripPos
    else
        Mesh.MeshId = BentMeshData
        --Tool.GripPos = BentGripPos
    end
    Bent = not Bent
end

function getPlayer()
    local char = Tool.Parent
    return game:GetService("Players"):GetPlayerFromCharacter(char)
end

function contains(t, v)
    for _, val in pairs(t) do
        if val == v then
            return true
        end
    end
    return false
end

function tagHuman(human)
    local tag = Instance.new("ObjectValue")
    tag.Value = getPlayer()
    tag.Name = "creator"
    tag.Parent = human
    game:GetService("Debris"):AddItem(tag)
end

function convertGrip()
    if Tool.Parent and Tool.Parent:FindFirstChild("Right Arm") then
        local weld = Tool.Parent["Right Arm"]:FindFirstChild("RightGrip")
        if weld then
            Grip = Instance.new("Motor6D")
            Grip.Name = "RightGrip"
            Grip.Part0 = weld.Part0
            Grip.Part1 = weld.Part1
            Grip.C0 = weld.C0
            Grip.C1 = weld.C1
            Grip.Parent = weld.Parent
            weld:Destroy()
        end
    end
end

function normal()
    if not AttackAble then return end

    --rest
    AttackAble = false
    delay(AttackRestTime, function()
        AttackAble = true
    end)

    --damage
    delay(AttackWindup, function()
        AttackVictims = {}
        AttackDamaging = true
        delay(AttackWindow, function()
            AttackDamaging = false
        end)
    end)

    --sound
    Handle.Swing.Pitch = math.random(90, 110)/100
    Handle.Swing:Play()

    Handle.Hit.Volume = 0
    Handle.Hit:Play()

    --animation
    switchBend()
    delay(0.66, function()
        switchBend()
    end)
    local t = math.random(1, 2)
    if t == 1 then
        Remote:FireClient(getPlayer(), "PlayAnimation", "Swing1")
    elseif t == 2 then
        Remote:FireClient(getPlayer(), "PlayAnimation", "Swing2")
    else
        Remote:FireClient(getPlayer(), "PlayAnimation", "Idle")
    end

end

function shove(char)
    local wielder = Tool.Parent
    if wielder and wielder:FindFirstChild("HumanoidRootPart") and char and char:FindFirstChild("HumanoidRootPart") then
        local shover = wielder.HumanoidRootPart
        local shovee = char.HumanoidRootPart

        local distance = 10
        local duration = 0.15
        local speed = distance/duration

        local velocity = (shovee.Position - shover.Position).unit * speed

        local shoveForce = Instance.new("BodyVelocity")
        shoveForce.maxForce = Vector3.new(1e9, 1e9, 1e9)
        shoveForce.velocity = velocity
        shoveForce.Parent = shovee
        game:GetService("Debris"):AddItem(shoveForce, duration)

        Handle.Hit.Volume = 0.5
    end
end

function onHandleTouched(part,hit)
    if not AttackDamaging then return end
    if part:IsDescendantOf(Tool.Parent) then return end

    if part.Parent and part.Parent:FindFirstChild("Humanoid") then
        local human = part.Parent.Humanoid
        if not contains(AttackVictims, human) then
            table.insert(AttackVictims, human)
            tagHuman(human)
            human:TakeDamage(script.Dmg.Value)
            print(script.Dmg.Value)
            shove(part.Parent)
        end
    end
end

function onEquip()
    if Equipping then return end
    Equipping = true

    convertGrip()

    --animation
    Remote:FireClient(getPlayer(), "PlayAnimation", "Idle")

    Equipping = false
end

function onUnequip()
    if Grip then
        Grip:Destroy()
    end

    --animation
    Remote:FireClient(getPlayer(), "StopAnimation", "Idle")
end


function onRemote(player, func, ...)
    if player ~= getPlayer() then return end

    if func == "NormalStart" then
        normal()
    end
end

Tool.Equipped:connect(onEquip)
Tool.Unequipped:connect(onUnequip)
Remote.OnServerEvent:connect(onRemote)
Handle.Touched:connect(onHandleTouched)