ora-1455 error occurred during System copy

Hello All,

We are doing system copy of SAP R3 4.7 and during System Export getting below error while accessing table S161:

DbSl Trace: Error 1455 in stmt_fetch()

DbSl Trace: ORA-1455 occurred when executing SQL statement (parse error offset=304)

(EXP) ERROR: DbSlExeRead failed

  rc = 99, table "S161"

  (SQL error 1455)

  error message returned by DbSl:

ORA-01455: converting column overflows integer datatype

(DB) INFO: disconnected from DB

Can anyone help in resolving this error?

Thanks,

Gaurav