SymptomsAfter upgrading from version 8.x to a later version it is not possible to create a backup or perform a migration.
The following messages appear in the backup/migration results:
<message code="InformationalException" severity="error">Could not parse permission 'manage_drweb', value 'false'</message>
CauseThe issue only occurs in case one of the previous upgrades (which occurred before the last upgrade) had failed with a particular database inconsistency.
ResolutionThe issue will be fixed in a future update for which a new Knowledgebase article will be created. You may subscribe for new articles on Parallels Plesk Panel Product if you wish to receive notifications about their creation.
WorkaroundNOTE: It is necessary to backup the database before applying the workaround!
It is necessary to replace the psa.Permissions entries which were not upgraded to the new database schema. You can do it using this command:
C:\Program Files\Parallels\Plesk\admin\bin>dbclient.exe --direct-sql --sql="update Permissions set permission='manage_virusfilter' where permission='manage_drweb'"