Why will the script not call the function?

Hey guys, this script should start round when there are atleast 4 players. I tried a test server with 4 players and the function is not being called, why is that?

All variables and Function names are correct.

while true do
    wait(5)
        a = game.Workspace.Time.Tme
        if game.Players.NumPlayers == 3 then
            Text = "Waiting for 1 more player"
            for i=1,#Text do
                a.Value = Text:sub(1,i)
                wait(0.1)
            end
        elseif game.Players.NumPlayers >3 then ChooseRound() --More than 3 players (I.E 4+): Call function. Not calling...
        else 
            Text = "Waiting for "..(4-game.Players.NumPlayers).." More Players"
            for i=1,#Text do
                a.Value = Text:sub(1,i)
                wait(0.1)
            end 
        end
        wait(1.9)
        a.Value = ""
end