Configuring Database Cache in 9iAS falis96%

hello all,
i am having a problem in configuring database buffer cache for Oracle 9iAS.
the user through which i am doin all this have all necessary privileges like SYSDBA,SYSOPER,DBA,execute on standard,dbms_lob,dbms_lock,wtcsys etc.
but when the Cache Configuration Assistant in 9iAS reaches at 96%,it gives the following error and terminates.
Reason: WTE-03501 Error updating list of users: Export failed on origin database.
OCI error - ORA-22288: file or LOB operation GETLENGTH failed
The system cannot find the file specified.
ORA-06512: at "SYS.DBMS_LOB", line 518
ORA-06512: at "SYS.WTCSYS", line 24
ORA-06512: at "SYS.WTCSYS", line 67
ORA-06512: at line 1
plz tell me ASAP what to do??
regards.

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Error in configuring database cache

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Dear friends,
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Dear ovidius,
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Configuring Database Cache in 9iAS falis96%

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