The Oracle database contain some invalid objects. Do they belong to Foglight?
The objects could be for example:
View: X_$KGLCURSOR
Synonym: X$KGLCURSOR
Package Body: QUEST_ADV_BEST_PRACTICES + QUEST_ADV_SQL_RULE_PAK
The objects belong to Performance Analysis, the predecessor tool of Foglight Performance Investigator.
If Performance Analysis is not being used anymore to monitor the database those objects can be deleted.
Note:
Performance Analysis is out of support since July 2017 and the product is end-of-life.