Hi Bianca -
If you go to your website and open up the Site Designer, click on the gear (Settings) icon next to the Registration Type that you want to check. Under the Privacy Settings, you should be able to confirm what the settings are - whether Open to the Public or by Invitation List only.
Here's an article that should also help with managing or adjusting these settings:
https://support.cvent.com/s/communityarticle/How-do-I-fix-the-Registration-for-this-event-is-not-available-error-message?is_article=true&lang=en_US&searchFor=privacy%20setting&page=1

Hope this helps!
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Rebecca Yousif
Senior Administrator - Event Technology
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