diff --git a/web/pgadmin/browser/static/js/browser.js b/web/pgadmin/browser/static/js/browser.js
index 3edfd7e79..7cb3e7002 100644
--- a/web/pgadmin/browser/static/js/browser.js
+++ b/web/pgadmin/browser/static/js/browser.js
@@ -556,8 +556,6 @@ define('pgadmin.browser', [
             'the original/corrupt file using a tool such as DB Browser for SQLite if desired.'+
             '<br><br>Original file: ' + res.data + '<br>Replacement file: ' +
             res.data.substring(0, res.data.length - 14),
-            function() { /*This is intentional (SonarQube)*/
-            }
           );
         }
       }).fail(function(xhr, status, error) {
diff --git a/web/pgadmin/browser/static/js/error.js b/web/pgadmin/browser/static/js/error.js
index b418fd9c6..b4603d883 100644
--- a/web/pgadmin/browser/static/js/error.js
+++ b/web/pgadmin/browser/static/js/error.js
@@ -48,15 +48,13 @@ define(
         text += '</div>';
         Notify.alert(
           _.unescape(title),
-          text
-        )
-          .set({'closable': true,
-            'onok': function() {
-              if(callback) {
-                callback();
-              }
-            },
-          });
+          text,
+          function() {
+            if(callback) {
+              callback();
+            }
+          }
+        );
       },
     });
 
diff --git a/web/pgadmin/static/js/backgrid.pgadmin.js b/web/pgadmin/static/js/backgrid.pgadmin.js
index 927ab96c2..b997a0c69 100644
--- a/web/pgadmin/static/js/backgrid.pgadmin.js
+++ b/web/pgadmin/static/js/backgrid.pgadmin.js
@@ -453,10 +453,7 @@ define([
           );
         }
       } else {
-        Notify.alert(gettext('Edit object'), gettext('This object is not user editable.'),
-          function() {
-            return true;
-          });
+        Notify.alert(gettext('Edit object'), gettext('This object is not user editable.'));
       }
     },
     render: function() {
@@ -548,11 +545,7 @@ define([
           }
         );
       } else {
-        Notify.alert(gettext('Delete object'), gettext('This object cannot be deleted.'),
-          function() {
-            return true;
-          }
-        );
+        Notify.alert(gettext('Delete object'), gettext('This object cannot be deleted.'));
       }
     },
     exitEditMode: function() {
diff --git a/web/pgadmin/tools/debugger/static/js/direct.js b/web/pgadmin/tools/debugger/static/js/direct.js
index eccdc4362..00ad8dc6b 100644
--- a/web/pgadmin/tools/debugger/static/js/direct.js
+++ b/web/pgadmin/tools/debugger/static/js/direct.js
@@ -449,7 +449,7 @@ define([
                   );
                 }
               })
-              .fail(self.raisePollingError());
+              .fail(self.raisePollingError);
           }, poll_timeout);
 
       },
@@ -623,7 +623,7 @@ define([
                   pgTools.DirectDebug.is_polling_required = false;
                 }
               })
-              .fail(self.raisePollingError());
+              .fail(self.raisePollingError);
           }, poll_end_timeout);
 
       },
@@ -682,7 +682,7 @@ define([
                     self.poll_end_execution_result(trans_id);
                   }
                 })
-                .fail(self.raisePollingError());
+                .fail(self.raisePollingError);
             }
           })
           .fail(function(xhr) {
diff --git a/web/pgadmin/tools/schema_diff/static/js/schema_diff_ui.js b/web/pgadmin/tools/schema_diff/static/js/schema_diff_ui.js
index 0e92a4545..d47c266a4 100644
--- a/web/pgadmin/tools/schema_diff/static/js/schema_diff_ui.js
+++ b/web/pgadmin/tools/schema_diff/static/js/schema_diff_ui.js
@@ -116,10 +116,14 @@ export default class SchemaDiffUI {
 
   raise_error_on_fail(alert_title, xhr) {
     try {
-      var err = JSON.parse(xhr.responseText);
-      Notify.alert(alert_title, err.errormsg);
+      if (_.isUndefined(xhr.responseText)) {
+        Notify.alert(alert_title, gettext('Unable to get the response text.'));
+      } else {
+        var err = JSON.parse(xhr.responseText);
+        Notify.alert(alert_title, err.errormsg);
+      }
     } catch (e) {
-      Notify.alert(alert_title, e.statusText);
+      Notify.alert(alert_title, gettext(e.message));
     }
   }
 
diff --git a/web/pgadmin/tools/sqleditor/static/js/sqleditor.js b/web/pgadmin/tools/sqleditor/static/js/sqleditor.js
index de48369de..800e4425e 100644
--- a/web/pgadmin/tools/sqleditor/static/js/sqleditor.js
+++ b/web/pgadmin/tools/sqleditor/static/js/sqleditor.js
@@ -2372,16 +2372,14 @@ define('tools.querytool', [
         pgWindow.default.pgAdmin && pgWindow.default.pgAdmin.Browser
             && pgWindow.default.pgAdmin.Browser.preference_version() <= 0) {
 
-      Notify.alert()
-        .setting({
-          'title': gettext('Connection lost'),
-          'label':gettext('Close'),
-          'message': gettext('The pgAdmin browser window has been closed and the connection to the server is lost. Please close this window and open a new pgAdmin session.'),
-          'onok': function(){
-            //Close the window after connection is lost
-            window.close();
-          },
-        }).show();
+      Notify.alert(gettext('Connection lost'),
+        gettext('The pgAdmin browser window has been closed and the connection to the server is lost. Please close this window and open a new pgAdmin session.'),
+        function(){
+          //Close the window after connection is lost
+          window.close();
+        },
+        gettext('Close')
+      );
     }
   };