gallery shortcode not working?

this is the first time i’m trying to use the gallery shortcode for including certain images. if i understand correctly i can add certain images to display without displaying the whole gallery. i have separate pages (see top menu of my website) where i have the whole galleries displayed.

i’ve used the following code: (without the spaces between the brackets)
[ gallery include=”006,009,005″ ]

in the “visual editor” the post is showing up with the gallery logo but when i view the page nothing shows in the post.

my website is:

https://lizartlizard.fortuin.info/slugblog/

the “test” entry is where i tried posting the code.

my other question is since i have more than one gallery, how do i specify which gallery to post the images from? perhaps that is also a problem why it’s not displaying.