ORA-04158
Property string does not exist in dynamic MLE execution context.
- property name: The name of the property that was attempted to import.
Cause
An attempt was made to import a property from a Multilingual Engine (MLE) execution context into PL/SQL using the DBMS_MLE package. The property name that was specified does not exist in the execution context.
Action
Specify the name of a property that has been exported by code in the execution context, or export the property from MLE language code in the execution context before importing into PL/SQL.