We are using On-Premise Orchestrator. We encountered a new issue today. While loading the orchestrator URL in chrome. The login page appears, then I entered the Credentials. After that, an error webpage is shown. Though the orchestrator fails to load, still the bot is working fine.
Error code #199 seems to be related to SSL Certificate being corrupted. In some cases, fixing that has helped others facing the same issue. Some other posts on forums:
Given that this is an on-prem installation, I would recommend you raise this directly with Uipath Technical Support using the link below. They will directly schedule a session with you and resolve your specific issue right away.