Not sure which webinar you may be referring to. But if the link you have doesn't work for some reason, go back to the page where you registered for the webinar (assuming that's one of those offered by Intuit ProConnect), click on the Register button, you can either register again or, if you do so just before the session starts, you can click on the Already Registered button to just sign-in and attend.
Still an AllStar
Go to the Announcement article:
"Level Up" is a gaming function, not a real life function.