[SOLVED] Failed to find port_list '33d0cd82-57c6-11e1-8ed1-406186ea4fc5'

When using a fresh instance of OpenVAS, users might encounter the error: Failed to find port_list '33d0cd82-57c6-11e1-8ed1-406186ea4fc5' while attempting to initiate a scan. This issue can arise for several reasons.
If OpenVAS was just installed, it is recommended to wait for a couple of hours before starting a scan. However, if the error persists even after waiting, users should check for the existence of a specific XML file using the following command:

find /var/lib/gvm/data-objects/ -name "*daba56c8-73ec-11df-a475-002264764cea*.xml"

If the file is present, the issue might be related to the feed import owner. This can be resolved by setting the feed import owner with the following command:

gvmd --modify-setting 78eceaec-3385-11ea-b237-28d24461215b --value `gvmd --get-users --verbose | grep admin | awk '{print $2}'`

After executing the command, return to the GUI, log out, clear the cache, and then initiate a new scan. This should resolve the issue. If the problem persists, it may be necessary to reinstall OpenVAS. Follow the installation instructions provided in this OpenVAS Install on Ubuntu tutorial.