The error happens in German and French, but not in English and Arabic.
Strange!
404 in my case because of lost domain in the URL. Only the part after the domain appears in the URL which the events plugin produces.
Any comments from developers? The plugin was indeed updated from 4.0 to 4.1.
Plugin Author
Brian
(@brianjessee)
Hi,
Sorry for the issues you are having. We can help troubleshoot them with you.
I am not able to reproduce the error on my test site.
So as a first step can you please flush your permalinks following this guide:
https://theeventscalendar.com/knowledgebase/fixing-http-404-errors/
If you need the site backup you can use the link datenfalke provide to get an older version and follow these steps to manual change the plugin:
https://theeventscalendar.com/knowledgebase/manual-updates/
Let us know what you find out.
For anyone else if you like to follow along please do so if you would like individual help please follow WordPress forum guidelines and post your own topic and we can help troubleshoot there.
Thanks