Potential solution? I’m not sure I understand what’s going on here and don’t to just shoot in the dark
$ sudo -u _gvm gvmd --get-users --verbose
admin xxxx-user-uuid-xxxx
$ sudo -u _gvm gvmd --modify-setting 78eceaec-3385-11ea-b237-28d24461215b --value xxxx-user-uuid-xxxx
$ sudo gvm-stop
$ sudo runuser -u _gvm -- greenbone-nvt-sync --rsync
$ sudo greenbone-scapdata-sync
$ sudo greenbone-certdata-sync
$ sudo reboot