why is this chat script I made not working? Everything was working when it was seperate.

wait()
game.ReplicatedStorage.Remotes.welcome.OnServerEvent:Connect(function(player)
while true do
if game.Workspace.PlayerCount.Players.Value >= 5
    then
    game.StarterGui:SetCore("ChatMakeSystemMessage", {
    Text = "Waiting for at least FIVE players to join..",
    Color = Color3.new(100, 100, 0),
    Font = Enum.Font.SourceSansLight,
    FontSize = Enum.FontSize.Size18,
print("made it here lol")
    })
    wait(10)
    end
wait()
if game.Workspace.PlayerCount.Players.Value <= 5
	and game.Workspace.game.CanCollide == true
	then
	game.StarterGui:SetCore("ChatMakeSystemMessage", {
    Text = "Welcome to the annual HUNGER GAMES",
    Color = Color3.new(100, 100, 0),
    Font = Enum.Font.SourceSansLight,
    FontSize = Enum.FontSize.Size18,
    })

	wait(10)
	game.StarterGui:SetCore("ChatMakeSystemMessage", {
    Text = "If you don't know how to play, read the description!",
    Color = Color3.new(100, 100, 0),
    Font = Enum.Font.SourceSansLight,
    FontSize = Enum.FontSize.Size18,
    	})
wait(10)
game.StarterGui:SetCore("ChatMakeSystemMessage", {
    Text = "Selecting random arena...",
    Color = Color3.new(100, 100, 0),
    Font = Enum.Font.SourceSansLight,
    FontSize = Enum.FontSize.Size18,
    	})
wait(5)
game.StarterGui:SetCore("ChatMakeSystemMessage", {
    Text = "Arena selected. Prepare to enter the game. May the odds be ever in your favor.",
    Color = Color3.new(100, 100, 0),
    Font = Enum.Font.SourceSansLight,
    FontSize = Enum.FontSize.Size18,
    	})
wait(20)
local Pos = player.Character:GetPrimaryPartCFrame()
					player:LoadCharacter()
					player.Character:SetPrimaryPartCFrame(Pos)
					if player.Character:FindFirstChild("ForceField") then
						player.Character["ForceField"]:Destroy()
						wait(1)
						game.Workspace.CanCollide = false
						game.ReplicatedStorage.Remotes.tp:FireServer()
						
						end
end
end
end)

when it was just this part of the script it worked but now it doesnt, any ideas?

wait()
game.ReplicatedStorage.Remotes.welcome.OnServerEvent:Connect(function(player)
while true do
if game.Workspace.PlayerCount.Players.Value >= 5
    then
    game.StarterGui:SetCore("ChatMakeSystemMessage", {
    Text = "Waiting for at least FIVE players to join..",
    Color = Color3.new(100, 100, 0),
    Font = Enum.Font.SourceSansLight,
    FontSize = Enum.FontSize.Size18,
print("made it here lol")
    })
    wait(10)
    end

When doing System Messages, you need to use semicolons [ ; ] for tables. You were using a regular comma [ , ].

Example

--this is correct
Text = "heyo";
Font = Enum.Font.SourceSansLight
--

--this isn't
Text = "heyo", --notice the comma
Font = Enum.Font.SourceSansLight

These reason why your script is breaking is because the first System Message broke, breaking all the other ones.

wait()
game.ReplicatedStorage.Remotes.welcome.OnServerEvent:Connect(function(player)
while true do
if game.Workspace.PlayerCount.Players.Value >= 5
    then
    game.StarterGui:SetCore("ChatMakeSystemMessage", {
    Text = "Waiting for at least FIVE players to join..";
    Color = Color3.new(100, 100, 0);
    Font = Enum.Font.SourceSansLight;
    FontSize = Enum.FontSize.Size18;
    })
print("made it here lol")
    wait(10)
    end
wait()
if game.Workspace.PlayerCount.Players.Value <= 5
    and game.Workspace.game.CanCollide == true
    then
    game.StarterGui:SetCore("ChatMakeSystemMessage", {
    Text = "Welcome to the annual HUNGER GAMES";
    Color = Color3.new(100, 100, 0);
    Font = Enum.Font.SourceSansLight;
    FontSize = Enum.FontSize.Size18;
    })

    wait(10)
    game.StarterGui:SetCore("ChatMakeSystemMessage", {
    Text = "If you don't know how to play, read the description!";
    Color = Color3.new(100, 100, 0);
    Font = Enum.Font.SourceSansLight;
    FontSize = Enum.FontSize.Size18;
        })
wait(10)
game.StarterGui:SetCore("ChatMakeSystemMessage", {
    Text = "Selecting random arena...";
    Color = Color3.new(100, 100, 0);
    Font = Enum.Font.SourceSansLight;
    FontSize = Enum.FontSize.Size18;
        })
wait(5)
game.StarterGui:SetCore("ChatMakeSystemMessage", {
    Text = "Arena selected. Prepare to enter the game. May the odds be ever in your favor.";
    Color = Color3.new(100, 100, 0);
    Font = Enum.Font.SourceSansLight;
    FontSize = Enum.FontSize.Size18;
        })
wait(20)
local Pos = player.Character:GetPrimaryPartCFrame()
                    player:LoadCharacter()
                    player.Character:SetPrimaryPartCFrame(Pos)
                    if player.Character:FindFirstChild("ForceField") then
                        player.Character["ForceField"]:Destroy()
                        wait(1)
                        game.Workspace.CanCollide = false
                        game.ReplicatedStorage.Remotes.tp:FireServer()

                        end
end
end
end)

In that script, I think I corrected everything to a semicolon.

It's also really important to not put a print inside the table.

If this helped, please accept the answer. If you have any more questions, comment on this.