Hello Carlos,
You are having the same issue as Vania was having originally on http://www.outsystems.com/forums/discussion/14691/error-application-db-cleaner/
Please note that this application does a best-effort to identify what it can delete. In order to be able to display how much database space, I am not able to use the DBCleaner_API (plus, this existed a bit before the API did :) ).
This means that some internal tables which are not exposed cannot be used to exclude some espace versions that are locked by being tagged in LifeTime. This is what originates the errors you see. DBCleaner jumps through them in order to delete as many old-espace versions as it can.
You are having the same issue as Vania was having originally on http://www.outsystems.com/forums/discussion/14691/error-application-db-cleaner/
Please note that this application does a best-effort to identify what it can delete. In order to be able to display how much database space, I am not able to use the DBCleaner_API (plus, this existed a bit before the API did :) ).
This means that some internal tables which are not exposed cannot be used to exclude some espace versions that are locked by being tagged in LifeTime. This is what originates the errors you see. DBCleaner jumps through them in order to delete as many old-espace versions as it can.