when you installed openvas or just starting the service and you get this error: ospd-openvas service did not start, there is an easy fix for this.
The problem is because of access right on a log file used bij openvas. With this command you can fix it.
chmod 666 /var/log/gvm/openvas.log
Then run gvm-start and you are good to go.
Thank!!!!!! very thanks!!!!