Hi drno,
assuming that OPR-GW-RECEIEVER is opr-event-receiver (Event Pipeline Receiver),
it is part of WDE and thus the logs reside in <HPBSM>\log\wde\,
most likely
<HPBSM>\log\wde\wdeTomcat.log
<HPBSM>\log\wde\opr-gateway.log
<HPBSM>\log\wde\opr*.log in general,
and perhaps
<HPBSM>\log\opr*.log
As you found that the event receiver was down, I would guess that you found a way to detect this?
> If possible, can you send examples of errors in the log when a process OPR-GW-RECEIVER may not start.
Sorry, as I never envountered a problem with this part, I don't have any errors in my mind.
Greetings
Siggi