Make sure your added is updated since it was implemented in a recent update.
Make sure to read this post on how to translate: https://webnus.net/dox/modern-events-calendar/translate-mec
Yes, this add-on can be used with MEC Lite.
These two are exclusive PRO features so if you’re using MEC Lite that’s why they’re not available to you.
Make sure to use the latest version of the add-on and check your server’s configuration with the help of this post: https://webnus.net/dox/modern-events-calendar/what-are-best-wordpress-php-settings If doesn’t help, make sure to contact us and we’ll help you out.
You go WordPress Dashboard > Settings > Permalink and set your website’s permalinks on Post name. Afterward, the editor will become functional.
Let me know if you have any other questions in the comment area.