Export Error EXP-00015 ????

From: as <joe_at_isp.com>
Date: Wed, 28 Jul 1999 15:24:42 +0200
Message-ID: <7nn0iv$mn5$1@hermes.is.co.za>

Below is the messaging I get when exporting my database via exp in Oracle 7.3.4.
Firstly - what does it mean and secondly how do I get hold of this record 71191 that has the error.
Thirdly what is datatype 1?

This is quite an urgent error as it stops right there and the rest of my database is not backed up!

Thanking you in advance.
Andre

---

. . exporting table                     CUSADDRESS

EXP-00015: error on row 71191 of table CUSADDRESS, column ADDRESS3, datatype 1
EXP-00222:
System error message 28

EXP-00002: error in writing to export file
EXP-00002: error in writing to export file
EXP-00000: Export terminated unsuccessfully

Shutdown Immediate at Wed Jul 28 15:11:33 USAST 1999 Received on Wed Jul 28 1999 - 08:24:42 CDT