The current used category is/was Greenbone Professional Edition - Greenbone Community Forum (Description: About the Greenbone Professional Edition category - Greenbone Professional Edition - Greenbone Community Forum) which is about the downloadable ready-to use virtual machine.
Based on your posted issue it seems you have an own installation either build from source or installed via 3rdparty repositories. For such installations the https://community.greenbone.net/c/gse (Description: About the Greenbone Community Edition category - Greenbone Community Edition - Greenbone Community Forum) needs to be chosen.
I have moved this question to the correct category for now.
Additionally i’m closing this issue as a duplicate of the topic below. Please follow up there if you have further questions.