Leaderstats script works like a dream in Studio, but not in the game it is included on, why?

This is one of my scripts. It is supposed to take the value of Videos and add it to the value of Views every 2 minutes. It works perfectly in Studio, but not the game it is on. If anyone wants to see the game it is on, here it is: https://web.roblox.com/games/1300877434/OPEN-Be-a-YouTuber-ALPHA#!/about I don't know if that will help answer my question or not, but just in case I put it there. Here is my script:

while wait(120) do 
 for _,player in pairs(game.Players:GetChildren()) do
if player:FindFirstChild("leaderstats")then
if player.leaderstats.Subscribers.Value <= 10 then
player.leaderstats.Views.Value = player.leaderstats.Views.Value + player.leaderstats.Videos.Value
end
end
end
end