different sidebars on pages

Hello, I'm using Fotographie Free on local host, and would like to find out whether I can display a different sidebar on each page of my site. I have consulted https://www.wpbeginner.com/wp-themes/display-different-sidebar-for-each-post-and-page-for-wordpress/ and have been able to create a custom sidebar which appears on one of my pages but I do not seem to be able to create additional sidebars for other pages. Is there a limit in the free version to how many sidebars I can create/display?