Error in physicalExamActivity.java line 320 in version 2.0 beta 1

[Sidintelehealth]

Unable to start activity ComponentInfo{io.intelehealth.client/io.intelehealth.client.activities.physcialExamActivity.PhysicalExamActivity}: java.lang.NullPointerException: Attempt to invoke virtual method 'int io.intelehealth.client.knowledgeEngine.PhysicalExam.getTotalNumberOfExams()' on a null object reference

Fatal Exception: java.lang.RuntimeException: Unable to start activity ComponentInfo{io.intelehealth.client/io.intelehealth.client.activities.physcialExamActivity.PhysicalExamActivity}: java.lang.NullPointerException: Attempt to invoke virtual method 'int io.intelehealth.client.knowledgeEngine.PhysicalExam.getTotalNumberOfExams()' on a null object reference
at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2756)
at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2825)
at android.app.ActivityThread.-wrap12(ActivityThread.java)
at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1557)
at android.os.Handler.dispatchMessage(Handler.java:110)
at android.os.Looper.loop(Looper.java:203)
at android.app.ActivityThread.main(ActivityThread.java:6339)
at java.lang.reflect.Method.invoke(Method.java)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:1084)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:945)