I have had some challenges with seminars.  In most cases manually enrolling someone in the seminar solves the issue.  Today I was looking into an issue and when I am logged in as the end user there is no option for them to sign up for the seminar.  I get this message at when I click on more info.  Existing sign-up(s) for this seminar, are not in the required attendance state(s).  I'm not sure where to go in correcting this issue so the end user can sign up for the seminar.