[Plugin: NextGEN Gallery] every zip upload creates new sub-folders

Greetings!
nextgen-gallery is fun! Great!
Thanks.

I have got a problem. When I upload a zip file into a galery, there is a new folder created… deeper inside…
Like this one, after the 3rd zip uploaded:
wp-content/gallery/wp-content/gallery/wp-content/gallery/wp-content/gallery/bamako
So, at every new zip upload a /wp-content/gallery is added before the new forlder.

There is a bug somewhere… or do I make something wrong?

The WP is at https://www.bamako.boszininja.com/

How can it be resolved?

Thanks,

Tamas
from Hungary