You are running NuGet.Server v2.11.1.0

Click here to view your packages.

Repository URLs In the package manager settings, add the following URL to the list of Package Sources:
https://repository.surfacebi.com/nuget
Use the command below to push packages to this feed using the nuget command line tool (nuget.exe).
nuget push {package file} -s https://repository.surfacebi.com/nuget {apikey}