Hi vediclover,
Thanks for your post. We didn’t make any major changes to how user roles work in our most recent update, so I suspect there is something different about your new website. I see that you have a license for Community Events- perhaps you were using that plugin previously on your other site? With Community Events your users can register and submit events from the front end of your site. Is that what you had before?
Another possibility is that your new website doesn’t have a user role plugin and your previous one did. You might check out a plugin like User Roles or Members. The WordPress Codex page on adding new users might also be helpful for you. Let me know if you need any additional help!
Best,
Leah