Hi @Artimes ,
You can find the KB article over here:
https://learn.microsoft.com/en-us/troubleshoot/system-center/orchestrator/runbook-server-goes-offline
Here's also a blog post describing the above link:
https://techcommunity.microsoft.com/t5/system-center-blog/kb-orchestrator-2012-runbook-server-goes-offline-due-to/ba-p/348211
You can also follow the links below that also go through on how to clear orphaned runbook instances:
- SC orchestrator: DB Query To Stop Running Runbooks in SCORCH and Clear Their Orphans
- Check and remove orphaned Runbooks
----------
(If the reply was helpful please don't forget to upvote and/or accept as answer, thank you)
Best regards,
Leon