Permissions on the $ORACLE_HOME/inventory directory are corrupted. Solution: Restore the inventory from a backup or run opatch lsinventory -detail as the oracle user (not root ). Never change inventory permissions manually.
In the world of Oracle database management, OPatch 13.9.4.2.5
opatch apply -conflict_check -oh $ORACLE_HOME
These logs are invaluable if you need to open a Service Request (SR) with Oracle Support.
: Double-check that your $OMS_HOME and $PATH are correctly pointing to your Oracle middleware directory.