When you register, you are asked to use the same nickname you have on rbr.onlineracing.cz.
If you are using the nickname you have on CZ to login and this doesn't match the one you have in RBRPro,
you will not login to RBRPro and won't get your profile page.
To fix it, just replace the username with the nickname you are registered with in RBRPro and then paste you driver Id.
Once logged in RBRPro, you can make a nickname change request by clicking on your nickname in your driver profile page
(i.e. the page where your photo is)
If you don't remember your nickname, check the email you received when you registered in RBRPro or contact the RBRPro technical support.