Sikuli script failing while running on Selenium-Grid

Steps that I configured:
1. created a windows subsystem for Linux(Ubuntu) on my WIN10
2. Installed java and Jenkins on Linux Subsystem
3.Selenium-Grid Hub : Registered Ubuntu server as Grid
4. Selenium- Grid Node: Registered my local Windows as Node
5. Launching Jenkins on my Windows10 system that I configured on Linux Subsystem

My StartNode JSON file:

{
  "capabilities":
  [

    {
      "browserName": "internet explorer",
      "maxInstances": 1,
      "seleniumProtocol": "WebDriver",
   "applicationName":"sikuli",
      "browserVersion": "11"
    },
    {
      "browserName": "chrome",
      "maxInstances": 1,
      "seleniumProtocol": "WebDriver"
    }
  ],
  "platform":"Windows",
  "host":"127.0.0.1",
  "proxy": "org.openqa.grid.selenium.proxy.DefaultRemoteProxy",
  "maxSession": 5,
  "port": 5555,
  "register": true,
  "registerCycle": 5000,
  "hub": "http://127.0.0.1:4444",
  "nodeStatusCheckTimeout": 5000,
  "nodePolling": 5000,
  "role": "node",
  "unregisterIfStillDownAfter": 60000,
  "downPollingLimit": 2,
  "debug": false,
  "servlets" : [],
  "withoutServlets": [],
  "custom": {}
}

Error on Jenkins:

16:26:30 java.lang.NullPointerException
16:26:30 at org.sikuli.script.Screen.capture(Screen.java:587)
16:26:30 at org.sikuli.script.Screen.capture(Screen.java:607)
16:26:30 at org.sikuli.script.Region.doCheckLastSeenAndCreateFinder(Region.java:3001)
16:26:30 at org.sikuli.script.Region.checkLastSeenAndCreateFinder(Region.java:2996)
16:26:30 at org.sikuli.script.Region.doFind(Region.java:2945)
16:26:30 at org.sikuli.script.Region.access$500(Region.java:21)
16:26:30 at org.sikuli.script.Region$RepeatableFind.run(Region.java:3169)
16:26:30 at org.sikuli.script.Region$Repeatable.repeat(Region.java:3125)
16:26:30 at org.sikuli.script.Region.wait(Region.java:2756)
16:26:30 at org.sikuli.script.Region.find(Region.java:2329)
16:26:30 at org.sikuli.script.Region.getLocationFromTarget(Region.java:3238)
16:26:30 at org.sikuli.script.Region.click(Region.java:3736)
16:26:30 at org.sikuli.script.Region.keyin(Region.java:4414)
16:26:30 at org.sikuli.script.Region.type(Region.java:4377)

16:26:30 at ?.When an user logs in with badgeID as 42028 and password as sdsds(/var/lib/jenkins/workspace/Test/src/test/resources/features/Donor Volumes/TrimaAccel/Rinseback_VolumeLoss.feature:13)

** It is starting Internet Explorer and failing once Sikuli script starts.

Please advice ..