Failed to add Data Domain system - code 30937 (error initializing lsu)

I'm trying to add a ave 19.2 to ddve 7.1.0 and it fails with "Failed to add Data Domain system - code 30937 (error initializing lsu)" . In the ddve messages log it shows that the connection from ave to ddve via SSH using the user "avamarboost2" is good using the SSH keys, but then it checks certificates which seems to fail. The session ends with ave deleting the ssh-keys for some reason. Below is the extract from messages.

Is there some certificate import that needs to be done on ddve in order that it allows ave to add it ?

Apr 24 18:15:56 ddve1 ddsh: NOTICE: MSG-DDSH-00009: (tty=pts/0, session=30988) avamarboost2: command "filesys status"
Apr 24 18:15:56 ddve1 ddsh: NOTICE: MSG-DDSH-00009: (tty=pts/0, session=30989) avamarboost2: command "system show version"
Apr 24 18:15:57 ddve1 ddsh: NOTICE: MSG-DDSH-00009: (tty=pts/0, session=30990) avamarboost2: command "system show version"
Apr 24 18:15:57 ddve1 ddsh: NOTICE: MSG-DDSH-00009: (tty=pts/0, session=30991) avamarboost2: command "ddboost user show"
Apr 24 18:15:58 ddve1 ddsh: NOTICE: MSG-DDSH-00009: (tty=pts/0, session=30992) avamarboost2: command "user show detailed avamarboost2"
Apr 24 18:15:58 ddve1 ddsh: NOTICE: MSG-DDSH-00009: (tty=pts/0, session=30993) avamarboost2: command "system show version"
Apr 24 18:15:59 ddve1 ddsh: NOTICE: MSG-DDSH-00009: (tty=pts/0, session=30994) avamarboost2: command "ddboost status"
Apr 24 18:15:59 ddve1 ddsh: NOTICE: MSG-DDSH-00009: (tty=pts/0, session=30997) avamarboost2: command "user show detailed avamarboost2"
Apr 24 18:16:02 ddve1 ddsh: NOTICE: MSG-DDSH-00009: (tty=pts/0, session=31041) avamarboost2: command "snmp show trap-hosts"
Apr 24 18:16:02 ddve1 ddsh: NOTICE: MSG-DDSH-00009: (tty=pts/0, session=31042) avamarboost2: command "snmp show trap-hosts"
Apr 24 18:16:03 ddve1 ddsh: NOTICE: MSG-DDSH-00009: (tty=pts/0, session=31043) avamarboost2: command "adminaccess certificate show subject ave1.test.localdomain"
Apr 24 18:16:03 ddve1 ddsh: NOTICE: MSG-DDSH-00017: (tty=pts/0, session=31043) avamarboost2: command "adminaccess certificate show subject ave1.test.localdomain" exited wit h code: 33
Apr 24 18:16:03 ddve1 ddsh: NOTICE: MSG-DDSH-00009: (tty=pts/0, session=31051) avamarboost2: command "adminaccess certificate show imported-ca application ddboost"
Apr 24 18:16:03 ddve1 ddsh: NOTICE: MSG-DDSH-00017: (tty=pts/0, session=31051) avamarboost2: command "adminaccess certificate show imported-ca application ddboost" exited w ith code: 33
Apr 24 18:16:04 ddve1 ddsh: NOTICE: MSG-DDSH-00009: (tty=pts/0, session=31079) avamarboost2: command "adminaccess certificate cert-signing-request show"
Apr 24 18:16:04 ddve1 ddsh: NOTICE: MSG-DDSH-00017: (tty=pts/0, session=31079) avamarboost2: command "adminaccess certificate cert-signing-request show" exited with code: 3 3
Apr 24 18:16:04 ddve1 ddsh: NOTICE: MSG-DDSH-00009: (tty=pts/0, session=31080) avamarboost2: command "adminaccess certificate show imported-host application ddboost"
Apr 24 18:16:04 ddve1 ddsh: NOTICE: MSG-DDSH-00017: (tty=pts/0, session=31080) avamarboost2: command "adminaccess certificate show imported-host application ddboost" exited with code: 33
Apr 24 18:16:04 ddve1 ddsh: NOTICE: MSG-DDSH-00009: (tty=pts/0, session=31081) avamarboost2: command "adminaccess show ssh-keys user avamarboost2"
Apr 24 18:16:05 ddve1 ddsh: NOTICE: MSG-DDSH-00009: (tty=<>, session=31084) avamarboost2: command "adminaccess del ssh-keys 1 user avamarboost2"
Apr 24 18:16:05 ddve1 sshd[30987]: Received disconnect from 192.168.1.60 port 42892:11: The user disconnected the application
Apr 24 18:16:05 ddve1 sshd[30987]: Disconnected from user avamarboost2 192.168.1.60 port 42892

Thanks.