[TYPO3-seminars] Cooluri and Seminars: Errormessage

[Leo Führinger]

Hello,
I use seminar and recently cooluri - unfortunately not everything
works as expected.
Consider the following scenario:
Users visit the website and want to register for event - he click on
the "register link". However, he should login first at the homepage
(if he's already registered (sr_feuser_register)) - He will be
redirected to login box...
There is already a redirect_url in the URL:

http://www.svs-nord.de/login.html?tx_seminars_pi1[uid]=216&redirect_url=http://www.svs-nord.de/veranstaltungen/seminaranmeldung.html.

If the login is successful on the home page was, it was supposed to
come back to the event notification, but not what happens - there
comes the error message:

An event with this number does not exist. If you have received this
message through a link on our page, please notify the webmaster. Thank
you!
Or in german;
Eine Veranstaltung mit dieser Nummer existiert nicht. Wenn Sie diese
Fehlermeldung durch einen Link auf unserer Seite bekommen haben,
benachrichtigen Sie bitte den Webmaster. Vielen Dank!

Is not surprising, because the URL is incorrect (no uid).
So you have to again click on the "register link" of the event...
Can someone help me where I can set this correctly so that the user
can go directly to the event-registration?
Would be really great.
Thanks,
Leo