Hi,
Thanks for using our plugins. I can help out here.
WordPress is not always checking for an updates, but if you visit the Update page in the admin it should show there.
Also, you can download the latest version from your account here on theeventscalendar.com
And follow these steps to manually update on your local site:
https://theeventscalendar.com/knowledgebase/manual-updates/
That process does not delete or change event data, but it is always a good idea to backup before updating plugins.
Let me know how that works out.
Cheers