Hi, Denise. I’m glad you figured that out.
Please note that we only have one PRO version. I’m guessing its plugin folder got renamed somehow. Please login via SFTP or cPanel File Manager (or other method) and make sure the folder is properly named as “events-calendar-pro”
If you can’t find the correct folders in SFTP, feel free to delete both via the wp-admin plugins page and then you can just re-install the .zip at the plugins page as well: https://theeventscalendar.com/my-account/downloads/ — This is probably the best/easiest option.
Please let me know how this goes for you.