Hi, Mary.
This might be related to a bug we fixed just a few minutes ago. Please download the latest version of The Events Calendar and see if it affects anything here for you.
If it doesn’t solve the issue for you…
Please enable WP_DEBUG and WP_DEBUG_LOG (which will create a file on your server at /wp-content/debug.log if there are any WP_DEBUG messages) and share any debug messages you see while trying to replicate this issue and doing other things on your site relevant to this ticket (such as visiting your site’s home page, events page, single-event pages, and anything else you can think to do).
You might also see if you can spot any console errors at your site. (If needed, you may reference our KB article Using Google Chrome Developer Tools.)
Let us know what you find out.
Thanks.