Error when cropping an image and sending it back to activity

this is the exception i am getting when i crop an image and send it back to the activity for processing. please can someone help me?
java.lang.RuntimeException: Failure delivering result ResultInfo{who=null, request=203, result=-1, data=Intent { (has extras) }} to activity {com.guna.ocrsample/com.guna.ocrsample.MainActivity}: java.lang.NullPointerException: Attempt to invoke virtual method 'android.graphics.Bitmap com.theartofdev.edmodo.cropper.CropImageView.getCroppedImage()' on a null object reference
at android.app.ActivityThread.deliverResults(ActivityThread.java:4268)
at android.app.ActivityThread.handleSendResult(ActivityThread.java:4312)
at android.app.ActivityThread.-wrap19(Unknown Source:0)
at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1644)
at android.os.Handler.dispatchMessage(Handler.java:106)
at android.os.Looper.loop(Looper.java:164)
at android.app.ActivityThread.main(ActivityThread.java:6494)
at java.lang.reflect.Method.invoke(Native Method)
at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:438)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:807)
Caused by: java.lang.NullPointerException: Attempt to invoke virtual method 'android.graphics.Bitmap com.theartofdev.edmodo.cropper.CropImageView.getCroppedImage()' on a null object reference
at com.guna.ocrsample.MainActivity.onActivityResult(MainActivity.java:140)
at android.app.Activity.dispatchActivityResult(Activity.java:7276)
at android.app.ActivityThread.deliverResults(ActivityThread.java:4264)
at android.app.ActivityThread.handleSendResult(ActivityThread.java:4312) 
at android.app.ActivityThread.-wrap19(Unknown Source:0) 
at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1644) 
at android.os.Handler.dispatchMessage(Handler.java:106) 
at android.os.Looper.loop(Looper.java:164) 
at android.app.ActivityThread.main(ActivityThread.java:6494)