After upgrade of Shareplex from, say 4.0 to 5.1, you find that Capture is stopped due to error with messages similar to the following appearing in the event log:
Notice: ORA-00904: invalid column name. [sp_ocap(osp)/2780]
Error: Unexpected Oracle error: ORA-00904: invalid column name. in sp_ocap.c:720 [sp_ocap(osp)/2780]
Process exited sp_ocap (for o.ZAPQ) [pid = 2780] - exit(1)
The other processes seem to be running fine.