On the server the feature ASP.NET 4.71) must be installed. Often only .NET Framework is installed and not ASP.NET!2)
Example from ServiceLog:
2021.09.02 15:27:52.243| Info |srv| WebServerSession | | 021527B28Z-34 | Setting up the web environment in ./Webs/eBiss
2021.09.02 15:27:52.243| Error |srv| RunJob | WebServerSession | 021527B28Z-34 | Exception: An exception was thrown by the target of a call.
2021.09.02 15:27:52.243| Error |srv| RunJob | WebServerSession | 021527B28Z-34 | –> Inner: value can't be null.
2021.09.02 15:27:52.243| Error |srv| RunJob | WebServerSession | 021527B28Z-34 | Parametername: path1