JInstaller: :Install: Can't find XML setup file......HELP!

hello, i downloaded several extensions : ken burns slideshow, news ticker, accordion slider, social pop up, video background, gallery and jus horizontal accordion slider.

gallery and horizontal accordion slider installed fine, but when i tried installing the rest a message pops up : JInstaller: :Install: Can't find XML setup file

Dear Daria.
Thank you for using product our
I saw you send a ticket for us. I will check and reply for you in that ticket.