Round Activation does not work when numbers goes above 3?

I wonder why that my script doesn't work when the round should begin. Here's the source of code:

local num = game:GetService("Players")

if num.NumPlayers > 3 then
	return
	end
	workspace.RoundActivationKey.Value = true

	
if num.NumPlayers < 3 then
	local hint = Instance.new("Hint", workspace)
	hint.Text = "Players not enough. Needs at least 3 players to begin."
	

while true do wait(1)
	if num.NumPlayers > 3 then
		workspace.RoundActivationKey = true
workspace["CORE OF ROUND - DO NOT DELETE!!! OR WE WILL BE BLOXINGTON BABY!"].Disabled = false --lmao this name is ***
hint:Destroy()
break


end

	end
end  

So basically what I want to do, is to make the round start when the number of players goes above 3, but doesn't work. Someone help? Thanks. -Midnight

Here I go.

local num = game:GetService("Players")
02
 
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if num.NumPlayers > 3 then
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    workspace.RoundActivationKey.Value = true
07  end

 
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if num.NumPlayers < 3 then
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    local hint = Instance.new("Hint", workspace)
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    hint.Text = "Players not enough. Needs at least 3 players to begin."
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while true do wait(1)
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    if num.NumPlayers > 3 then

Thanks for answering.