setup fail

[leoterry-ulrica]

hello！I run this command：
docker run -d
-p 5001:80
-e NUGET_API_KEY=mynuget
-v /srv/docker/nuget/database:/var/www/db
-v /srv/docker/nuget/packages:/var/www/packagefiles
--name nuget-server
sunside/simple-nuget-server
then : http://192.168.200.86:5001/, but i get the info below：
[29/May/2018:12:16:34 +0000] "GET /Packages(Id='runtime.native.System.Security.Cryptography.OpenSsl',Version='4.3.0') HTTP/1.1" 500 5 "-" "NuGet Client V3/4.5.0 (Microsoft Windows NT 10.0.17134.0, VS Community/15.0)" "-"
192.168.1.12 - - [29/May/2018:12:16:34 +0000] "GET /Packages(Id='runtime.osx.10.10-x64.runtime.native.System.Security.Cryptography.Apple',Version='4.3.0') HTTP/1.1" 500 5 "-" "NuGet Client V3/4.5.0 (Microsoft Windows NT 10.0.17134.0, VS Community/15.0)" "-"
192.168.1.12 - - [29/May/2018:12:16:34 +0000] "GET /Packages(Id='runtime.ubuntu.14.04-x64.runtime.native.System.Security.Cryptography.OpenSsl',Version='4.3.0') HTTP/1.1" 500 5 "-" "NuGet Client V3/4.5.0 (Microsoft Windows NT 10.0.17134.0, VS Community/15.0)" "-"
192.168.1.12 - - [29/May/2018:12:16:34 +0000] "GET /Packages(Id='runtime.opensuse.42.1-x64.runtime.native.System.Security.Cryptography.OpenSsl',Version='4.3.0') HTTP/1.1" 500 5 "-" "NuGet Client V3/4.5.0 (Microsoft Windows NT 10.0.17134.0, VS Community/15.0)" "-"
192.168.1.12 - - [29/May/2018:12:16:34 +0000] "GET /Packages(Id='runtime.osx.10.10-x64.runtime.native.System.Security.Cryptography.OpenSsl',Version='4.3.0') HTTP/1.1" 500 5 "-" "NuGet Client V3/4.5.0 (Microsoft Windows NT 10.0.17134.0, VS Community/15.0)" "-"
2018/05/29 12:16:56 [error] 17#17: *1 open() "/var/www/public/Packages" failed (2: No such file or directory), client: 192.168.1.12, server: localhost, request: "GET /Packages HTTP/1.1", host: "192.168.200.86:5001"

How can i resolve this question?
thanks