Failure while connecting to openhab app to local server

  • openHAB version: 2.11.0
  • Issue of the topic: Failure while connecting openhab android app to local server
    Error: "Value<!DOCTYPE of type java.lang.String cannot be converted to JSONObject

I am not able to view any sitemap on the app. Kindly help me for the same

Do the stitemaps work fine th the Basic UI?
What app? There is more than one.
If your are running OpenHAB 2.1.1 that is ancient. There is no version 2.11.0. The current stable version is 2.5.1 and the app was likely updated for the newer versions of OH
The next version of OH core will be 3.x.