The new version of the plugin uses the new icons and new function.
If you have problems displaying the menu, you could write to support. The free plugin works correctly with new enhanced features.
The only reason why the menu may not be displayed on the pages is not the correctly specified URL in your site General settings. The protocol must be the same for both URLs: WordPress Address (URL) and Site Address (URL). If you use https, the both URLs must have https
Do not be afraid to turn in support, we will not offend you