diff --git a/httpdocs/js/widgets/widgets.js b/httpdocs/js/widgets/widgets.js
index 3a8b6b4ada..a9653dc888 100644
--- a/httpdocs/js/widgets/widgets.js
+++ b/httpdocs/js/widgets/widgets.js
@@ -143,15 +143,20 @@ class ChartWidget extends Widget {
 
     static registerEventCallback(widgetName, eventName, callback) {
         setTimeout(async () => {
-            const widget = WidgetUtils.getWidgetByName(widgetName);
-            const updatedOptions = {
-                chart: {
-                    events: {
-                        [eventName]: callback
+            try {
+                const widget = WidgetUtils.getWidgetByName(widgetName);
+                const updatedOptions = {
+                    chart: {
+                        events: {
+                            [eventName]: callback
+                        }
                     }
-                }
-            };
-            await widget._chart.updateOptions(updatedOptions);
+                };
+                await widget._chart.updateOptions(updatedOptions);
+            }
+            catch (e) {
+
+            }
         }, 1000);
     }
 
diff --git a/httpdocs/templates/pages/alerts/alert-stats.template b/httpdocs/templates/pages/alerts/alert-stats.template
index d14466b236..86accc23ab 100644
--- a/httpdocs/templates/pages/alerts/alert-stats.template
+++ b/httpdocs/templates/pages/alerts/alert-stats.template
@@ -129,8 +129,10 @@
 	    
             // reload the table
             $table.ajax.url(`{* datatable.datasource.name *}?${searchParams.toString()}`).load();
-
-            WidgetUtils.getWidgetByName("{{ chart.name }}").update(copyParams);
+            try {
+                WidgetUtils.getWidgetByName("{{ chart.name }}").update(copyParams);
+            }
+            catch(e) {}
         }
 
         function printQueryTime($table) {
@@ -277,7 +279,7 @@
 	    });
 
         // on apply button click
-        $(`#btn-apply`).on('click', async function() {
+        $(`.range-picker`).on('change', async function(e) {
             await onRangePickerChange(true);
         });