we've just started using CiviCRM events. I've followed the process to get the event set up. I can test-drive the link and it works fine but if I go to the live online registration I get an error page that says I don't have permission to access the page. I've tried setting the public permission to allowed for "CiviEvent: register for events" to Allowed but it doesn't save when I change the permission. Any ideas where i need to look for the error. I'm using CiviCRM 4.7.7 and Joomla! 3.5.1 Thanks Emma
This is an ACL issue. If users can login, then register it is simpler. If you are allowing anonymous users then you have a tiny bit of configuration to do to enable anonymous users. Have to race out to a client for the day, i can send you info tonight with some screen captures, but also maybe you can look up the instructions in the manuals, it works quite nicely when configured. CiviCRM » Administer CiviCRM » Access Control
For more reference please give a read https://book.civicrm.org/user/current/initial-set-up/permissions-and-access-control/
Also can you just double check that you have the event checked off as a "public event".