MisunderstoodCommandException: Error running AT E0, response: ?

[AshishgithubindiA]

Caused by: com.github.pires.obd.exceptions.MisunderstoodCommandException: Error running AT E0, response: ? at java.lang.Class.newInstance(Native Method) at com.github.pires.obd.commands.ObdCommand.checkForErrors(ObdCommand.java:220) at com.github.pires.obd.commands.ObdCommand.readResult(ObdCommand.java:140) at com.github.pires.obd.commands.ObdCommand.run(ObdCommand.java:88) at com.rohan.darshan.autoginie_obd2.MainActivity.nextStep(MainActivity.java:179) at com.rohan.darshan.autoginie_obd2.MainActivity$Task.doInBackground(MainActivity.java:216) at com.rohan.darshan.autoginie_obd2.MainActivity$Task.doInBackground(MainActivity.java:210) at android.os.AsyncTask$2.call(AsyncTask.java:295) at java.util.concurrent.FutureTask.run(FutureTask.java:237) at android.os.AsyncTask$SerialExecutor$1.run(AsyncTask.java:234) at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1113) at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:588) at java.lang.Thread.run(Thread.java:818)