I am the Commercial Operations Administrator for Aventus.
I have been tasked with updating the page that you have for Aventus as all the information contained on there is out dated.
Bitcointalk is not an organization, and it tries to be as private and anonymous as possible. This means that the admins do not "have" a page for aventus or any other project and cannot update it or give anyone else besides the thread starter access to edit that thread.
We either need permission to delete the page or to to update the page. The staff member who created this page on behalf of Aventus is no longer in their employ.
Open a new thread as suggested. If you want to try avoiding confusion, you can also drop a neutral feedback on the previous account, linking to the active profile and thread for the said project.
And this time let it be done professionally, to allow easy transfer of ownership.