Error during Unattended mode


I’ve been encountering an issue with my Unattended bot running on the server over the past few days. Occasionally, it fails, and the Orchestrator logs show the following error: “System exception at initialization: An error has occurred. Error code: 0 at Source: UiPath.System.Activities.” This problem doesn’t occur every day but happens twice a week on any given day.

I’ve attempted to troubleshoot the problem from my end, but I haven’t been able to resolve it. Can anyone provide assistance with this issue?

Screenshot 2024-02-13 183608


Could you please explain to us first which action you are trying to perform and which error you are getting?

Also, can you look into this issue?


In my process, the first step involves checking the holiday calendar. If it’s not a holiday, the process proceeds to the next step, which is adding queue items. However, before reaching this step, an error occurs. I’ve attempted to troubleshoot the issue but haven’t been able to resolve it. Interestingly, when I run the process on the development URL, it executes successfully. However, in the production environment, the error occurs, as I previously mentioned.

orchestrator log