Changing Value in Filtering Enabled but I got this error Attemp to index field ' ' (a nil value)?

local ReplicatedStorage = game:GetService("ReplicatedStorage")
local ServerStorage = game:GetService("ServerStorage")
local Players = game:GetService("Players")

local ServerScriptService = game:GetService("ServerScriptService")
local RPG Engine = ServerScriptService:WaitForChild("RPG Engine")

local RemoteEvent = Instance.new("Folder", ReplicatedStorage)
RemoteEvent.Name = "CharacterCreationRemote"

local HairChangerRightEvent = Instance.new("RemoteEvent", RemoteEvent)
HairChangerRightEvent.Name = "HairChangerRight"

local HairChangerLeftEvent = Instance.new("RemoteEvent", RemoteEvent)
HairChangerLeftEvent.Name = "HairChangerLeft"

-- Functions --

local function HairChangerRight(player)
    (player.Name).Cosmetics.HairStyle.Value = (player.Name).Cosmetics.HairStyle.Value + 1

    if (player.Name).Cosmetics.HairStyle.Value > 10 then
      (player.Name).Cosmetics.HairStyle.Value = 0
    end
end

local function HairChangerLeft(player)
    (player.Name).Cosmetics.HairStyle.Value = (player.Name).Cosmetics.HairStyle.Value + 1

    if (player.Name).Cosmetics.HairStyle.Value > 0 then
       (player.Name).Cosmetics.HairStyle.Value = 10
    end
end

-- Function Callings --

HairChangerRightEvent.OnServerEvent:Connect(HairChangerRight)
HairChangerLeftEvent.OnServerEvent:Connect(HairChangerLeft)

The Folder is in ServerStorage holding a folder with the player name and 6 subfolders containing values. So Comestics is a subfolder.