Short Loop Not Working?

while true do
    local Child=script.Parent.Game.LeftLane:GetChildren()
if  Child.YScale< Child then
    Child.Name="Left1"
end
end

19:44:25.117 - Players.Player.PlayerGui.LocalPricklyMagpie:66: attempt to compare nil with table

Hierarchy: game>Players>PlayerGui>Game(ScreenGui)>LeftLane

--Will this work [edit]
children = script.Parent.Game.LeftLane:GetChildren()
for k, child in pairs(children)do
if child:IsA('ImageLabel') and 
    child.Name=="Left" and
    child.YScale<=children then
child.Name="Test"
end 
end

I'm trying to make a script that constantly checks if a Frame's YScale is lower than other the other Frames with the same exact name inside "LeftLane" . After the code finds that one, it will rename it so it can function with my DDR script.