Filter bag fell off from the pool cleaner

[Ozoonn]

So I bought a new filter bag for my pool cleaner yesterday and today it feel straight off the attachment that you attach to the actual poolpool cleaner, is there a way to get it back on or did I just buy a defect one?
http://i.imgur.com/43YKIt3h.jpg

[CarlD]

Were you unable to see the stickied threads in this forum?