Error handled on the user session invalidation

components/device-mgt/org.wso2.carbon.device.mgt.ui/src/main/resources/jaggeryapps/devicemgt/app/modules/business-controllers/user.js

@@ -463,7 +463,13 @@ var userModule = function () {
     publicMethods.isAuthorized = function (permission) {
         var carbon = require("carbon");
         var carbonServer = application.get("carbonServer");
-        var carbonUser = session.get(constants.USER_SESSION_KEY);
+        var carbonUser;
+        try {
+            carbonUser = session.get(constants.USER_SESSION_KEY);
+        } catch (e) {
+           log.error("User object was not found in the session");
+           carbonUser = null;
+        }
         var utility = require('/app/modules/utility.js').utility;
         if (!carbonUser) {
             log.error("User object was not found in the session");