Carousle after installation does not show menu elements as in current tutorial

Ladies and Gentlemen,

after successfully installing the carousel-free plugin for initial trial under
Wordpress 4.9.8
installation in german language
using already RichMaster Theme from https://richwp.com
I followed your user guide on how to create a first page with carousel, but my menu picture looks much different from yours when creating new page, so there is no “Add media” button visible in the page as in your tutorial video on Youtube.
Can there be anything wrong by using your plugin under WP4.9.8 in a german language innstallation?
Kind regards, J?rg

P.S.: I’d like to attach 2 screenshots of how my screen looks like, but here there seems to be no such option.
In case I can send them by e-mail to somebody, please send your coordinates to my e-mail address: [email protected]
P.S. 2: from all I saw and read about your Carousel plugin, I would really be interested to purchase and use the Pro version.
P.S. 3: I can not provide a URL for our website, as it is currently under local construction (we are beginners in blog site) and we still are on the lookout for an appropriate web hoster.

The page I need help with: [log in to see the link]