hi @ab-korneev_0401 , By "debugging", we mean running the ProGet code inside of Visual Studio's "debug mode". That will show the errors let us see quickly how to fix them. I'm afraid it's not easy to identify the problem without it, since it's very likely a bug in the third-party repository you're using. Since it's not possible to provide that information, can you... create a server on AWS LightSail (or similar cloud service) Install the same type of third-party repository software and configure it in same manner upload one or two packages that reproduce the problem verify the problem in ProGet Then, send us the information of the server, and we can look at it through the debug mode