Hi Jennifer,
Thank you for reaching out to us. This could be related to your permalinks structure. To check this, go to Settings > Permalinks, select Plain option and save your settings.
We’ve also found this happening due to incorrect slug settings, here’s one case https://theme.co/apex/forum/t/single-event-on-404-error-page-events-calendar/14554/3. Also see https://webnus.net/dox/modern-events-calendar/slug-options/
Sometimes re-saving the events work, try re-saving your events and see if this resolves the issue.
Also make sure your Modern Event Calendar plugin is compatible with our latest release of theme stated here: https://theme.co/apex/forum/t/troubleshooting-version-compatibility/195
If nothing works then please check for the following first:
-
Clear all caches including browser cache then turn off your endurance cache in Admin > Settings > General and other optimization plugins.
-
Test for a plugin conflict. You can do this by deactivating all third party plugins, and seeing if the problem remains. If it’s fixed, you’ll know a plugin caused the problem, and you can narrow down which one by reactivating them one at a time.
If you still have problems kindly get back to us with the result of the steps above and URL/User/Pass of your WordPress dashboard using the Secure Note functionality of the post to follow up the case.
Thanks.