Diagnosis
The logical database used to create the InfoSet has been changed and isincompatible. Tables have been deleted from the tree. Since the fieldsof these tables are not used in queries, they have been deleted fromthe InfoSet. The structure of the tree has also been changed.Therefore, queries using this InfoSet may not work correctly.

Procedure
Check and modify the InfoSet. Then, you must check and, if necessary,correct all the queries which use this InfoSet.