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Attempt to invoke virtual method 'void android.app.ProgressDialog.dismiss()' on a null object reference
java.lang.NullPointerException: Attempt to invoke virtual method 'void android.app.ProgressDialog.dismiss()' on a null object reference	at com.usabilla.sdk.ubform.ui.FeedbackFormActivity.showFeedbackForm(FeedbackFormActivity.java:267)	at com.usabilla.sdk.ubform.ui.FeedbackFormActivity.access$600(FeedbackFormActivity.java:50)	at com.usabilla.sdk.ubform.ui.FeedbackFormActivity$getFormTask.onPostExecute(FeedbackFormActivity.java:503)	at com.usabilla.sdk.ubform.ui.FeedbackFormActivity$getFormTask.onPostExecute(FeedbackFormActivity.java:484)	at android.os.AsyncTask.finish(AsyncTask.java:636)	at android.os.AsyncTask.access$500(AsyncTask.java:177)	at android.os.AsyncTask$InternalHandler.handleMessage(AsyncTask.java:653)	at android.os.Handler.dispatchMessage(Handler.java:102)	at android.os.Looper.loop(Looper.java:135)	at android.app.ActivityThread.main(ActivityThread.java:5254)	at java.lang.reflect.Method.invoke(Native Method)	at java.lang.reflect.Method.invoke(Method.java:372)	at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:903)	at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:698)