Well firstly, the album was only released on Friday in some countries and today in US and UK so you can't say the album has flopped. The album will do well I'm sure.
L4L did flop though.....and while I think it's pretty generic it deserved to do better. Apart from the age issue, I think the fact that the song was available from December hurt it's chances. All the hardcore fans already had it and there weren't enough casuals interested.
However if Ghosttown flops, then I'm not sure what else she can do, because that's probably the best song she has done in 10 years.