Hi Marina!
Thanks for getting in touch with us!
I’m sorry you are having that issue. Let me help you troubleshoot that.
I could not reproduce the issue myself using Yoast SEO plugin, so it’s hard to tell if it’s really a conflict with it.
Could you please enable WP_DEBUG and WP_DEBUG_LOG ? This will create a debug.log file inside the /wp-content directory.
After that, try navigating a few times into the page where you are having the issue, so that in case there is an error, it will be saved into the debug.log file. Please share that log file with us so we can spot the problem from there.
Also, when coming back could you please share with us your latest system info by following this guide > https://theeventscalendar.com/knowledgebase/sharing-sys-info/ ?
Thanks,
Victor