Container fails to start

been using shinyproxy for awhile and now want to setup a stage server.

have all setup, but when i try to start an image i get the below error.
have gone back to the openalytics example image, to rule out anything ive written.
has anyone come across this issue before?

2017-06-02 07:56:51.914 INFO 27348 — [ XNIO-2 task-1] c.s.docker.client.DefaultDockerClient : Starting container with Id: 28fd701b1ffceff94bb26ca2bfb41766efc8288e4da211282ac01d6435a799ac
2017-06-02 07:56:55.315 INFO 27348 — [ XNIO-2 task-1] eu.openanalytics.services.DockerService : Proxy activated [user: NLtwDTz7mO-NtTXcASgPynR2JjtnJ8_otQty7Kx_] [app: euler] [port: 20000]
2017-06-02 07:56:56.336 ERROR 27348 — [ XNIO-2 I/O-3] io.undertow.proxy : UT005028: Proxy request to /thirsty_newton failed

java.io.IOException: UT001000: Connection closed
at io.undertow.client.http.HttpClientConnection$ClientReadListener.handleEvent(HttpClientConnection.java:544) ~[undertow-core-1.4.11.Final.jar!/:1.4.11.Final]
at io.undertow.client.http.HttpClientConnection$ClientReadListener.handleEvent(HttpClientConnection.java:487) ~[undertow-core-1.4.11.Final.jar!/:1.4.11.Final]
at org.xnio.ChannelListeners.invokeChannelListener(ChannelListeners.java:92) ~[xnio-api-3.3.6.Final.jar!/:3.3.6.Final]
at org.xnio.conduits.ReadReadyHandler$ChannelListenerHandler.readReady(ReadReadyHandler.java:66) ~[xnio-api-3.3.6.Final.jar!/:3.3.6.Final]
at org.xnio.nio.NioSocketConduit.handleReady(NioSocketConduit.java:88) [xnio-nio-3.3.6.Final.jar!/:3.3.6.Final]
at org.xnio.nio.WorkerThread.run(WorkerThread.java:559) [xnio-nio-3.3.6.Final.jar!/:3.3.6.Final]

2017-06-02 07:56:56.340 ERROR 27348 — [ XNIO-2 I/O-3] io.undertow.proxy : UT005028: Proxy request to /thirsty_newton failed

java.io.IOException: UT001000: Connection closed
at io.undertow.client.http.HttpClientConnection$ClientReadListener.handleEvent(HttpClientConnection.java:544) ~[undertow-core-1.4.11.Final.jar!/:1.4.11.Final]
at io.undertow.client.http.HttpClientConnection$ClientReadListener.handleEvent(HttpClientConnection.java:487) ~[undertow-core-1.4.11.Final.jar!/:1.4.11.Final]
at org.xnio.ChannelListeners.invokeChannelListener(ChannelListeners.java:92) ~[xnio-api-3.3.6.Final.jar!/:3.3.6.Final]
at org.xnio.conduits.ReadReadyHandler$ChannelListenerHandler.readReady(ReadReadyHandler.java:66) ~[xnio-api-3.3.6.Final.jar!/:3.3.6.Final]
at org.xnio.nio.NioSocketConduit.handleReady(NioSocketConduit.java:88) [xnio-nio-3.3.6.Final.jar!/:3.3.6.Final]
at org.xnio.nio.WorkerThread.run(WorkerThread.java:559) [xnio-nio-3.3.6.Final.jar!/:3.3.6.Final]

solved the issue, it was because my landing_page was blank and missing /

Thanks, @David_Shakespeare for the feedback!

Best,
Tobias