In Azavista, there are three different settings for event visibility. ‘Open to public’ means everyone can see your event website. ‘Only those who get an invitation’ means only people you shared the link with will be able to see it. ‘Only those in CRM’ means that event will be visible only to people who are added as contacts in Azavista CRM.
Those settings can be changed in the Settings tab of your main Event page, under section Event visibility.