ORA-28506: parse error in data dictionary

admin

ORA-28506: parse error in data dictionary translation for string stored in string
Cause: A reference to anORACLE data dictionary table or view name on a
heterogeneous database link to a non-Oracle system could not be translated. The
ORACLE data dictionary tables shown with view HS_CLASS_DD contain invalid
SQL for the data dictionary translation.
Action: Contact customersupport of the agent vendor.
16-156 Oracle Database ErrorMessages
ORA-28507: error indata dictionary view string
Cause: The initializationparameter table for the Heterogeneous Services was not
available, or its structure (number of columns or column types) was incorrect.
Action: Verify correctinstallation of the following Heterogeneous Services'
initialization parameter views: HS_CLASS_INIT and HS_INST_INIT. If these
views are not available, make sure you ran the script CATHS.SQL in the
$ORACLE_HOME/rdbms/admin directory.
ORA-28508: invalidvalue string for HeterogeneousServices initialization parameter
string
Cause