Index: lams_tool_assessment/src/java/org/lamsfoundation/lams/tool/assessment/web/action/LearningAction.java
===================================================================
diff -u -r5c56f99b5c68772f16031bfcadc8ea326e4b1787 -reead9d37d022d1c4cfa7d20473cd1f33694580ba
--- lams_tool_assessment/src/java/org/lamsfoundation/lams/tool/assessment/web/action/LearningAction.java	(.../LearningAction.java)	(revision 5c56f99b5c68772f16031bfcadc8ea326e4b1787)
+++ lams_tool_assessment/src/java/org/lamsfoundation/lams/tool/assessment/web/action/LearningAction.java	(.../LearningAction.java)	(revision eead9d37d022d1c4cfa7d20473cd1f33694580ba)
@@ -614,8 +614,14 @@
 		    break;
 		}
 	    }
+	    
+	    // in case learner goes to the next page and refreshes it right after this. And thus it's not possible to know
+	    // previous page number in this case. but anyway no need to save answers
+	    if (question == null) {
+		break;
+	    }
+	    
 	    int questionType = question.getType();
-
 	    if (questionType == AssessmentConstants.QUESTION_TYPE_MULTIPLE_CHOICE) {
 		for (AssessmentQuestionOption option : question.getQuestionOptions()) {
 		    boolean answerBoolean = false;