Can't get past login page

I’m unable to login as I’ve completed the GVM install on an Ubuntu machine. I got an error message:

The Greenbone Vulnerability Manager service is not responding. This could be due to system maintenance. Please try again later, check the system status, or contact your system administrator.

I checked the logs and got the following message:

gsad main:WARNING:2021-08-16 15h13.50 utc:1099: MHD: Error: received handshake message out of context
gsad main:WARNING:2021-08-16 15h13.51 utc:1099: MHD: Error: received handshake message out of context
gsad main:WARNING:2021-08-16 15h13.51 utc:1099: MHD: Error: received handshake message out of context
gsad gmp:WARNING:2021-08-16 15h14.02 utc:1099: Failed to connect to server at /run/gvm/gvmd.sock: No such file or directory

any ideas?

Hi, not long ago there was change in default paths. Please see more info here Installing GVMD permission changes
If you used 3rd party script or packages please report a bug to them. They might not know about changes. From your log it looks like gvmd.sock is not found.