HI,
The above image shows RestSharp106.6.10 or higher is missing. Unfortunately, in some version of UiPath installer lacks necessary RestSharp package in the installer. So we need to add it and its dependcies package to Orchestrator or machine which robot works.
Or as another lazy approach, if it works dev environment, can you try to copy all the folders %USERPROFILE%.nuget\packages to same place of machine which robot works.
Regards,