Yes that's what usually happens the VM will be paused when the backing storage starts running out of space, try deleting the ISO from where you uploaded it to.
Regards,
Paul S.
From: Steve Watkins <watkinssr@gmail.com> Sent: 29 January 2020 00:13 To: users@ovirt.org <users@ovirt.org> Subject: [ovirt-users] Problems in new oVirt install
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Got everything installed and was uploding an ISO when the system just stopped responding. Went to the host and saw the hostedengine was paused. Looked online and found the following instructions for unpausing it