You have successfully logged into Citavi Web in your browser. As soon as you click to open a cloud project, a new tab with our shop page appears. In addition, the button to create a new project is missing.
Since you have been able to use the beta version of Citavi Web for free so far and also have a (site) license for Citavi 6, you may be irritated now.
You will need a separate license for Citavi Web from now on. A license for Citavi 6 is only valid for this desktop version.
However, it is not yet clear which universities will also offer Citavi Web as part of their site license.
Alternatively, until it is clear whether your university also offers a license for Citavi Web, you can use the previous entry point (usable without license until July 9, 2021): Citavi Web Beta.