again because people can't read devforum posts

--Client

--//Services

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

--//Variables

local Player = Players.LocalPlayer
local Assets = ReplicatedStorage:WaitForChild("Assets")
local Remotes = ReplicatedStorage:WaitForChild("Remotes")
local Parties = Assets:WaitForChild("Parties")
local MyParty = Parties:WaitForChild(Player.UserId.."'s party")
local Events = Remotes.Events
local Functions = Remotes.Functions
local UI = Assets.UI
local GUI = script.Parent
local Main = GUI:WaitForChild("Main")
local Invite = Main.Invite
local InviteCoolDown = false

--//Functions

local function CheckForPlayersYouMissed()
    for i,player in pairs(Players:GetPlayers()) do
        if Invite:FindFirstChild(player.UserId) == nil and player ~= Player then
            local Template = UI.InviteTemplate:Clone()
            Template.Parent = Invite
            Template.Name = player.UserId
            Template.Text = player.Name
            Template.MouseButton1Click:Connect(function()
                if not InviteCoolDown then
                    InviteCoolDown = not InviteCoolDown
                    Events:FireServer("Invite",{tonumber(Template.Name)}) -- tell the server they want to invite the player
                    wait(4)
                    InviteCoolDown = not InviteCoolDown
                end
            end)
        end
    end
end

local function FindInTable(index,tbl)
    for i,v in pairs(tbl) do
        if i == index then
            return v
        end
    end
end

--//Events

Players.PlayerAdded:Connect(function(player)
    if Invite:FindFirstChild(player.UserId) == nil and player ~= Player then
        local Template = UI.InviteTemplate:Clone()
        Template.Parent = Invite
        Template.Name = player.UserId
        Template.Text = player.Name
        Template.MouseButton1Click:Connect(function()
            if not InviteCoolDown then
                InviteCoolDown = not InviteCoolDown
                Events:FireServer("Invite",{tonumber(Template.Name)}) -- tell the server they want to invite the player
                wait(4)
                InviteCoolDown = not InviteCoolDown
            end
        end)
    end
end)

Players.PlayerRemoving:Connect(function(player)
    if Invite:FindFirstChild(player.UserId) ~= nil and player ~= Player then
        Invite:FindFirstChild(player.UserId):Destroy() -- remove their stuff since they left
    end
end)

Functions.OnClientInvoke = function(Command,ArgumentTable)

end

Events.OnClientEvent:Connect(function(Command,ArgumentTable)
    if Command == "AddPlayerToMM" then
        local AddPlayer = ArgumentTable.Player
        local PartyPlace = ArgumentTable.PartyPlace
        Main.Party:FindFirstChild("Player"..PartyPlace).Player.Text = AddPlayer.Name
        Main.Party:FindFirstChild("Player"..PartyPlace).Icon.Image = "https://www.roblox.com/bust-thumbnail/image?userId="..AddPlayer.UserId.."&width=420&height=420&format=png"
        if AddPlayer == Player then
            if PartyPlace == 1 then
                Main.Ready.Visible = true
            else
                Main.Ready.Visible = false
                if Main.Party.Player1.Player.Text == Player.Name then
                    Main.Ready.Visible = true
                end
            end
        end
    elseif Command == "ENDPARTY" then
        for i,v in pairs(Main.Party:GetChildren()) do
            if v.Name ~= "Player1" then
                v.Icon.Image = "rbxasset://textures/ui/GuiImagePlaceholder.png"
                v.Player.Text = "PlayerName"
            else
                v.Player.Text = Player.Name
                v.Icon.Image = "https://www.roblox.com/bust-thumbnail/image?userId="..Player.UserId.."&width=420&height=420&format=png"
            end
        end
        Main.Ready.Visible = true
        Main.BadNews.Visible = true
        wait(string.len(Main.BadNews.Text)/20)
        Main.BadNews.Visible = false
    elseif Command == "Invited" then
        local PlayerFrom = ArgumentTable.From
        Main.Invited.Visible = true
        Main.Invited.Message.Text = PlayerFrom.Name.." has invited you to a party, would you like to join?"
        Main.Invited.Yes.MouseButton1Click:Connect(function()
            Main.Invited.Visible = false
            Events:FireServer("AcceptInvite",{From = PlayerFrom,Key = ArgumentTable.InviteID})
        end)
        Main.Invited.No.MouseButton1Click:Connect(function()
            Main.Invited.Visible = false
            Events:FireServer("DeclineInvite",{From = PlayerFrom,Key = ArgumentTable.InviteID})
        end)
    elseif Command == "AddAllToNewParty" then
        local PlayersTable = ArgumentTable.Players
        for i,v in pairs(Main.Party:GetChildren()) do
            local Find = FindInTable(i,PlayersTable)
            if Find ~= nil then
                if Players:GetPlayerByUserId(tonumber(Find)) == Player then
                    if i == 1 then
                        Main.Ready.Visible = true
                    else
                        Main.Ready.Visible = false
                    end
                end
            end
            if Find ~= nil then
                v.Player.Text = Players:GetPlayerByUserId(tonumber(Find)).Name
                v.Icon.Image = "https://www.roblox.com/bust-thumbnail/image?userId="..Find.."&width=420&height=420&format=png"
            else
                v.Icon.Image = "rbxasset://textures/ui/GuiImagePlaceholder.png"
                v.Player.Text = "PlayerName"
            end
        end
    end
end)

Main.Ready.MouseButton1Click:Connect(function()
    Events:FireServer("Ready")
end)

--//Main

Main.Ready.Visible = true

CheckForPlayersYouMissed()

if MyParty ~= nil then
    if tonumber(MyParty.Party["1"].Value) == Player.UserId then
        Main.Party.Player1.Player.Text = Player.Name
        Main.Party.Player1.Icon.Image = "https://www.roblox.com/bust-thumbnail/image?userId="..Player.UserId.."&width=420&height=420&format=png"
    end
end

local CheckIfServerIsReserved = Functions:InvokeServer("IsReserved?")

if CheckIfServerIsReserved then
    Main.Visible = false
end