Hi, all
Recently, I run into a problem when I do exp on oracle 8.1.5 database, the error is

. . exporting table MESSAGEARCHIVE
EXP-00056: ORACLE error 24801 encountered
ORA-24801: illegal parameter value in OCI lob function
System error message 27

Before this, it worked fine.
Could it be the table was corrupted? or what?
Thanks for help