Please keep calm...
Please stay patient....after selection of your "variant" it may take a few seconds (while the system is updating in the background) until the button "Jetzt Buchen" (Register Now) will work, consequently.
Sometimes it works better when you move your cursor a little bit (away from the button field) to allow the required system update.
Issues during registration process
In some cases people face issues with our on-line registration - which may be caused by company restricitve cookie rules or fire-wall settings. It appears easier to register from a private computer instead of using a company computer then, consequently.
If your registration still fails, please send us an informal e-mail indicating the events you want to participate. We are confident to find a solution then, accordingly.
We appreciate your understanding...