Hi Milan.
Your settings page would point you to the URL you posted, but it’s actually incorrect unless your site language is set to English.
If your site is set to French, for example, your URL would be http://mydomain.com/events/community/ajouter
I’ll mark this ticket as Pending Fix, which means this thread should receive a reply once the applicable fix has been released. I cannot guarantee when it will be fixed as it’s in the development team’s hands now. They need to assign it, code it, test it, and schedule it for release.
I apologize for this issue and appreciate your understanding and patience.