After having done a backup/migration all the qubes can not start because of the following error:
qrexeq-daemon startup failed 35:sigchld_parent_handler: connection to VM failed.
I also created a new sys-usb qube using: “sudo qubesctl state.sls qvm.usb-keyboard” but that too returns the same error.
journalctl -f while trying to startup a qube does not seem to show anything noteworthy, everything looks fine up until the same error.
How can I further troubleshoot this?