slideshare instructions on wordpress site

I also found on WP instructions for using something called rockyou. https://en.support.wordpress.com/slideshows/rockyou/

It started to upload files but then just said slideshow not available.

I went to their support page but when clicked on “contact support” (https://www.rockyou.com/help/#slideshows)

this site came up? https://rockyou.com/ry/home

Has anyone used this site recently? Or know if it is now defunct?

I can’t believe i’m having such a hard time just getting a slideshow on one of my pages . . . .:(