Problem : EXP-00056: ORACLE error 3113 encountered

Problem : EXP-00056: ORACLE error 3113 encountered

dear all , i have an oracle  9.2.0.8 , always when i am trying to export,i get this error and always at the same table, this is stopping the export for all other tables, and even when i tried to export this table only i got the same following error and although it shows that the database has been shut but really the database is running and no problems with it? have anyone faced such thing before???

to export specified tables via Conventional path…
. . exporting table                        CSH_TRN
EXP-00056: ORACLE error 3113 encountered
ORA-03113: end-of-file on communication channe
EXP-00056: ORACLE error 24324 encountered
ORA-24324: service handle not initialized
EXP-00056: ORACLE error 24324 encountered
ORA-24324: service handle not initialized
EXP-00056: ORACLE error 24324 encountered
ORA-24324: service handle not initialized
EXP-00056: ORACLE error 24324 encountered
ORA-24324: service handle not initialized
EXP-00000: Export terminated unsuccessfully


Solution: EXP-00056: ORACLE error 3113 encountered

have you upgraded the Catalog?
I mean have you run catpatch.sql script
after you upgrade the software using Oracle
Universal Installer?