"This function is not yet enabled!", what does this means and how do fix?

It doesn't specify which function, so but here i got the only two possible functions causing this problem.

local function addPlayer(addedPlayer)
    table.insert(queque, addedPlayer)
end
------------------------------------------------------------

local function removePlayer(player)
for i,l in pairs(queque)do
    if l.addedPlayer == player then
        table.remove(queque, i)
    end
end
end