Capture stops with the following error in the event log.
Unexpected Oracle error: ORA-01403: no data foundin sp_ocap.c:1758
Capture is started using the wrong version binaries.
The situation usually occurs when oracle is upgraded.
For example from 9i to 10g and Shareplex is started from 9i binaries instead from 10g binaries (SP_SYS_PRODDIR/bin ).
If Oracle is on 9i, please make sure you have shareplex 9i binaries installed, if oracle is on 10g make sure you have shareplex 10g binaries installed and shareplex is started from correct binaries.
Make sure shareplex is started using the right version binaries.