Could not connect to server

Hi, today I installed openvas on a machine with kali linux, I have already done on 3 other machines a few days ago and everything was fine. Today when I try to log in on the openvas page, when I insert username and password, it says could not connect to server. What’s happening?

thanks

Duplicate of GSAD problems after upgrade on Kali Linux.

Please follow up with the Kali packaging team in the Kali bug tracker linked there for further questions.