Failed to setup azure iot hub client

Hi guys, I am a noobie

I am running openhabian 2.4 on my raspberry pi 3 b+

  1. I am having trouble connecting openhab to azure iot-central using the azure iot-hub binding. I have created my sas-key and entered it into openhab.

  2. When i look in the log file i get this message: “Failed to setup Azure IoT Hub client”

  3. what is the next step?

2019-05-29 21:32:53.293 [INFO ] [thome.model.lsp.internal.ModelServer] - Started Language Server Protocol (LSP) service on port 5007
2019-05-29 21:32:56.195 [INFO ] [ing.zwave.handler.ZWaveSerialHandler] - Connecting to serial port ‘/dev/ttyACM0’
2019-05-29 21:32:56.392 [INFO ] [ing.zwave.handler.ZWaveSerialHandler] - Serial port is initialized
2019-05-29 21:32:56.507 [INFO ] [ve.internal.protocol.ZWaveController] - Starting ZWave controller
2019-05-29 21:32:56.520 [INFO ] [ve.internal.protocol.ZWaveController] - ZWave timeout is set to 5000ms. Soft reset is false.
2019-05-29 21:32:56.579 [WARN ] [nal.protocol.ZWaveTransactionManager] - NODE 2: Not initialized (ie node unknown), ignoring message.
2019-05-29 21:32:56.588 [WARN ] [nal.protocol.ZWaveTransactionManager] - NODE 2: Not initialized (ie node unknown), ignoring message.
2019-05-29 21:32:56.598 [WARN ] [nal.protocol.ZWaveTransactionManager] - NODE 2: Not initialized (ie node unknown), ignoring message.
2019-05-29 21:32:56.608 [WARN ] [nal.protocol.ZWaveTransactionManager] - NODE 2: Not initialized (ie node unknown), ignoring message.
2019-05-29 21:32:56.640 [WARN ] [nal.protocol.ZWaveTransactionManager] - NODE 2: Not initialized (ie node unknown), ignoring message.
2019-05-29 21:32:58.137 [INFO ] [.dashboard.internal.DashboardService] - Started Dashboard at http://192.168.2.90:8080
2019-05-29 21:32:58.142 [INFO ] [.dashboard.internal.DashboardService] - Started Dashboard at https://192.168.2.90:8443
2019-05-29 21:32:59.760 [WARN ] [nal.protocol.ZWaveTransactionManager] - NODE 2: Not initialized (ie node unknown), ignoring message.
2019-05-29 21:33:01.307 [INFO ] [arthome.ui.paper.internal.PaperUIApp] - Started Paper UI at /paperui
2019-05-29 21:33:01.602 [INFO ] [ui.habmin.internal.servlet.HABminApp] - Started HABmin servlet at /habmin
2019-05-29 21:34:26.571 [ERROR] [io.internal.azureiothub.CloudService] - Failed to setup Azure IoT Hub client
2019-05-29 21:37:56.415 [ERROR] [io.internal.azureiothub.CloudService] - Failed to setup Azure IoT Hub client