nextgen gallery: i can't show the slideshow

Hi,
I’m trying to display a slideshow in my homepage.
I created a gallery in the nextgen plugin that has ID 9.
Than I looked for the parameters in the documentation and I created this shortcode.
<?php echo do_shortcode('[ngg_images gallery_id="9" display_type="photocrati-nextgen_basic_slideshow" gallery_width="100%" gallery_height="auto" cycle_interval="5"]'); ?>
I included only those parameters because I let the ones set in the dashboard handle the rest.

I placed the shortcode outside the loop in a div on top of my index page, but all I get is the message ” Gallery not found. Please check your settings.”
how come?

is it because in the plugin’s gallery option I set to show the galleries as thumbnails lists? does that creates a conflict?
Is it possible to show a gallery as a slideshow in a page and other galleries as thumnails in other post/pages?

thanks for the help

https://www.ads-software.com/plugins/nextgen-gallery/