diff --git a/CHANGELOG.md b/CHANGELOG.md
index 5dc98806..d9e23d63 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,3 +1,9 @@
+# v1.10.49.1
+## 09/03/2025
+
+1. [](#bugfix)
+    * Fixed several JS issues with Notifications and Scheduler
+
 # v1.10.49
 ## 08/25/2025
 
diff --git a/blueprints.yaml b/blueprints.yaml
index 6d3d93b5..2a6b0384 100644
--- a/blueprints.yaml
+++ b/blueprints.yaml
@@ -1,7 +1,7 @@
 name: Admin Panel
 slug: admin
 type: plugin
-version: 1.10.49
+version: 1.10.49.1
 description: Adds an advanced administration panel to manage your site
 icon: empire
 author:
diff --git a/themes/grav/app/forms/state.js b/themes/grav/app/forms/state.js
index 01d069f9..4356e3d6 100644
--- a/themes/grav/app/forms/state.js
+++ b/themes/grav/app/forms/state.js
@@ -13,8 +13,15 @@ const DOMBehaviors = {
 
     preventUnload() {
         let selector = '[name="task"][value^="save"], [data-delete-action], [data-flex-safe-action]';
-        if ($._data(window, 'events') && ($._data(window, 'events').beforeunload || []).filter((event) => event.namespace === '_grav').length) {
-            return;
+        // jQuery 3.x removed $._data, use $._data only if available (jQuery < 3.0)
+        // or check with jQuery's internal data store for jQuery >= 3.0
+        try {
+            const hasData = typeof $._data === 'function';
+            if (hasData && $._data(window, 'events') && ($._data(window, 'events').beforeunload || []).filter((event) => event.namespace === '_grav').length) {
+                return;
+            }
+        } catch (e) {
+            // $._data not available in jQuery 3.x+, continue with adding event handler
         }
 
         // Allow some elements to leave the page without native confirmation
@@ -33,8 +40,15 @@ const DOMBehaviors = {
     preventClickAway() {
         let selector = 'a[href]:not([href^="#"]):not([target="_blank"]):not([href^="javascript:"])';
 
-        if ($._data($(selector).get(0), 'events') && ($._data($(selector).get(0), 'events').click || []).filter((event) => event.namespace === '_grav')) {
-            return;
+        // jQuery 3.x removed $._data, use $._data only if available (jQuery < 3.0)
+        try {
+            const hasData = typeof $._data === 'function';
+            const element = $(selector).get(0);
+            if (element && hasData && $._data(element, 'events') && ($._data(element, 'events').click || []).filter((event) => event.namespace === '_grav')) {
+                return;
+            }
+        } catch (e) {
+            // $._data not available in jQuery 3.x+, continue with adding event handler
         }
 
         // Prevent clicking away if the form state is dirty
diff --git a/themes/grav/app/updates/index.js b/themes/grav/app/updates/index.js
index 31f5151e..6284e6de 100644
--- a/themes/grav/app/updates/index.js
+++ b/themes/grav/app/updates/index.js
@@ -99,7 +99,7 @@ export default class Updates {
         if (!this.payload.resources.total) { return this; }
 
         [plugins, themes].forEach(function(resources, index) {
-            if (!resources || Array.isArray(resources)) { return; }
+            if (!resources || Array.isArray(resources) || typeof resources !== 'object') { return; }
             let length = Object.keys(resources).length;
             let type = map[index];
 
diff --git a/themes/grav/app/updates/update.js b/themes/grav/app/updates/update.js
index 851486a8..5878beda 100644
--- a/themes/grav/app/updates/update.js
+++ b/themes/grav/app/updates/update.js
@@ -7,7 +7,18 @@ import { Instance as Update } from './index';
 // Dashboard update and Grav update
 $(document).on('click.remodal', '[data-remodal-id="update-grav"] [data-remodal-action="confirm"]', () => {
     const element = $('#grav-update-button');
-    element.html(`${translations.PLUGIN_ADMIN.UPDATING_PLEASE_WAIT} ${formatBytes(Update.payload.grav.assets['grav-update'].size)}..`);
+
+    // Safely get the file size with fallback
+    let sizeText = '';
+    if (Update.payload &&
+        Update.payload.grav &&
+        Update.payload.grav.assets &&
+        Update.payload.grav.assets['grav-update'] &&
+        Update.payload.grav.assets['grav-update'].size) {
+        sizeText = ` ${formatBytes(Update.payload.grav.assets['grav-update'].size)}`;
+    }
+
+    element.html(`${translations.PLUGIN_ADMIN.UPDATING_PLEASE_WAIT}${sizeText}..`);
 
     element.attr('disabled', 'disabled').find('> .fa').removeClass('fa-cloud-download').addClass('fa-refresh fa-spin');
 
diff --git a/themes/grav/app/utils/request.js b/themes/grav/app/utils/request.js
index 2b7911f3..b5a2f0ee 100644
--- a/themes/grav/app/utils/request.js
+++ b/themes/grav/app/utils/request.js
@@ -12,7 +12,9 @@ let request = function(url, options = {}, callback = () => true) {
         let data = new FormData();
 
         options.body = Object.assign({ 'admin-nonce': config.admin_nonce }, options.body || {});
-        Object.keys(options.body).map((key) => data.append(key, options.body[key]));
+        if (options.body && typeof options.body === 'object') {
+            Object.keys(options.body).map((key) => data.append(key, options.body[key]));
+        }
         options.body = data;
     }
 
diff --git a/themes/grav/app/utils/response.js b/themes/grav/app/utils/response.js
index 9cb8d059..6bcde807 100644
--- a/themes/grav/app/utils/response.js
+++ b/themes/grav/app/utils/response.js
@@ -73,7 +73,7 @@ export function userFeedback(response) {
             break;
     }
 
-    if (settings) {
+    if (settings && typeof settings === 'object' && settings !== null) {
         backup = Object.assign({}, toastr.options);
         Object.keys(settings).forEach((key) => { toastr.options[key] = settings[key]; });
     }
diff --git a/themes/grav/js/admin.min.js b/themes/grav/js/admin.min.js
index 56b2d190..77c17049 100644
--- a/themes/grav/js/admin.min.js
+++ b/themes/grav/js/admin.min.js
@@ -704,6 +704,7 @@ const external_GravAdmin_namespaceObject = GravAdmin;
 var trim = __webpack_require__(35814);
 var trim_default = /*#__PURE__*/__webpack_require__.n(trim);
 ;// CONCATENATED MODULE: ./app/utils/response.js
+function _typeof(o) { "@babel/helpers - typeof"; return _typeof = "function" == typeof Symbol && "symbol" == typeof Symbol.iterator ? function (o) { return typeof o; } : function (o) { return o && "function" == typeof Symbol && o.constructor === Symbol && o !== Symbol.prototype ? "symbol" : typeof o; }, _typeof(o); }
 
 
 
@@ -770,7 +771,7 @@ function userFeedback(response) {
       message = message || 'Invalid AJAX response.';
       break;
   }
-  if (settings) {
+  if (settings && _typeof(settings) === 'object' && settings !== null) {
     backup = Object.assign({}, utils_toastr.options);
     Object.keys(settings).forEach(function (key) {
       utils_toastr.options[key] = settings[key];
@@ -796,6 +797,7 @@ external_jQuery_default()(__webpack_require__.g).on('beforeunload._ajax', functi
   UNLOADING = true;
 });
 ;// CONCATENATED MODULE: ./app/utils/request.js
+function request_typeof(o) { "@babel/helpers - typeof"; return request_typeof = "function" == typeof Symbol && "symbol" == typeof Symbol.iterator ? function (o) { return typeof o; } : function (o) { return o && "function" == typeof Symbol && o.constructor === Symbol && o !== Symbol.prototype ? "symbol" : typeof o; }, request_typeof(o); }
 
 
 var raw;
@@ -813,9 +815,11 @@ var request = function request(url) {
     options.body = Object.assign({
       'admin-nonce': external_GravAdmin_namespaceObject.config.admin_nonce
     }, options.body || {});
-    Object.keys(options.body).map(function (key) {
-      return data.append(key, options.body[key]);
-    });
+    if (options.body && request_typeof(options.body) === 'object') {
+      Object.keys(options.body).map(function (key) {
+        return data.append(key, options.body[key]);
+      });
+    }
     options.body = data;
   }
   options = Object.assign({
@@ -833,12 +837,12 @@ var request = function request(url) {
 };
 /* harmony default export */ const utils_request = (request);
 ;// CONCATENATED MODULE: ./app/forms/fields/files.js
-function _typeof(o) { "@babel/helpers - typeof"; return _typeof = "function" == typeof Symbol && "symbol" == typeof Symbol.iterator ? function (o) { return typeof o; } : function (o) { return o && "function" == typeof Symbol && o.constructor === Symbol && o !== Symbol.prototype ? "symbol" : typeof o; }, _typeof(o); }
+function files_typeof(o) { "@babel/helpers - typeof"; return files_typeof = "function" == typeof Symbol && "symbol" == typeof Symbol.iterator ? function (o) { return typeof o; } : function (o) { return o && "function" == typeof Symbol && o.constructor === Symbol && o !== Symbol.prototype ? "symbol" : typeof o; }, files_typeof(o); }
 function _classCallCheck(a, n) { if (!(a instanceof n)) throw new TypeError("Cannot call a class as a function"); }
 function _defineProperties(e, r) { for (var t = 0; t < r.length; t++) { var o = r[t]; o.enumerable = o.enumerable || !1, o.configurable = !0, "value" in o && (o.writable = !0), Object.defineProperty(e, _toPropertyKey(o.key), o); } }
 function _createClass(e, r, t) { return r && _defineProperties(e.prototype, r), t && _defineProperties(e, t), Object.defineProperty(e, "prototype", { writable: !1 }), e; }
-function _toPropertyKey(t) { var i = _toPrimitive(t, "string"); return "symbol" == _typeof(i) ? i : i + ""; }
-function _toPrimitive(t, r) { if ("object" != _typeof(t) || !t) return t; var e = t[Symbol.toPrimitive]; if (void 0 !== e) { var i = e.call(t, r || "default"); if ("object" != _typeof(i)) return i; throw new TypeError("@@toPrimitive must return a primitive value."); } return ("string" === r ? String : Number)(t); }
+function _toPropertyKey(t) { var i = _toPrimitive(t, "string"); return "symbol" == files_typeof(i) ? i : i + ""; }
+function _toPrimitive(t, r) { if ("object" != files_typeof(t) || !t) return t; var e = t[Symbol.toPrimitive]; if (void 0 !== e) { var i = e.call(t, r || "default"); if ("object" != files_typeof(i)) return i; throw new TypeError("@@toPrimitive must return a primitive value."); } return ("string" === r ? String : Number)(t); }
 
 
 // import EXIF from 'exif-js';
@@ -1692,7 +1696,13 @@ function formatBytes(bytes, decimals) {
 // Dashboard update and Grav update
 external_jQuery_default()(document).on('click.remodal', '[data-remodal-id="update-grav"] [data-remodal-action="confirm"]', function () {
   var element = external_jQuery_default()('#grav-update-button');
-  element.html("".concat(external_GravAdmin_namespaceObject.translations.PLUGIN_ADMIN.UPDATING_PLEASE_WAIT, " ").concat(formatBytes(updates_Instance.payload.grav.assets['grav-update'].size), ".."));
+
+  // Safely get the file size with fallback
+  var sizeText = '';
+  if (updates_Instance.payload && updates_Instance.payload.grav && updates_Instance.payload.grav.assets && updates_Instance.payload.grav.assets['grav-update'] && updates_Instance.payload.grav.assets['grav-update'].size) {
+    sizeText = " ".concat(formatBytes(updates_Instance.payload.grav.assets['grav-update'].size));
+  }
+  element.html("".concat(external_GravAdmin_namespaceObject.translations.PLUGIN_ADMIN.UPDATING_PLEASE_WAIT).concat(sizeText, ".."));
   element.attr('disabled', 'disabled').find('> .fa').removeClass('fa-cloud-download').addClass('fa-refresh fa-spin');
   utils_request(updates_Instance.updateURL, function (response) {
     if (response.type === 'updategrav') {
@@ -1824,7 +1834,7 @@ var Updates = /*#__PURE__*/function () {
         return this;
       }
       [plugins, themes].forEach(function (resources, index) {
-        if (!resources || Array.isArray(resources)) {
+        if (!resources || Array.isArray(resources) || updates_typeof(resources) !== 'object') {
           return;
         }
         var length = Object.keys(resources).length;
@@ -4225,10 +4235,17 @@ var DOMBehaviors = {
   },
   preventUnload: function preventUnload() {
     var selector = '[name="task"][value^="save"], [data-delete-action], [data-flex-safe-action]';
-    if (external_jQuery_default()._data(window, 'events') && (external_jQuery_default()._data(window, 'events').beforeunload || []).filter(function (event) {
-      return event.namespace === '_grav';
-    }).length) {
-      return;
+    // jQuery 3.x removed $._data, use $._data only if available (jQuery < 3.0)
+    // or check with jQuery's internal data store for jQuery >= 3.0
+    try {
+      var hasData = typeof (external_jQuery_default())._data === 'function';
+      if (hasData && external_jQuery_default()._data(window, 'events') && (external_jQuery_default()._data(window, 'events').beforeunload || []).filter(function (event) {
+        return event.namespace === '_grav';
+      }).length) {
+        return;
+      }
+    } catch (e) {
+      // $._data not available in jQuery 3.x+, continue with adding event handler
     }
 
     // Allow some elements to leave the page without native confirmation
@@ -4245,10 +4262,18 @@ var DOMBehaviors = {
   },
   preventClickAway: function preventClickAway() {
     var selector = 'a[href]:not([href^="#"]):not([target="_blank"]):not([href^="javascript:"])';
-    if (external_jQuery_default()._data(external_jQuery_default()(selector).get(0), 'events') && (external_jQuery_default()._data(external_jQuery_default()(selector).get(0), 'events').click || []).filter(function (event) {
-      return event.namespace === '_grav';
-    })) {
-      return;
+
+    // jQuery 3.x removed $._data, use $._data only if available (jQuery < 3.0)
+    try {
+      var hasData = typeof (external_jQuery_default())._data === 'function';
+      var element = external_jQuery_default()(selector).get(0);
+      if (element && hasData && external_jQuery_default()._data(element, 'events') && (external_jQuery_default()._data(element, 'events').click || []).filter(function (event) {
+        return event.namespace === '_grav';
+      })) {
+        return;
+      }
+    } catch (e) {
+      // $._data not available in jQuery 3.x+, continue with adding event handler
     }
 
     // Prevent clicking away if the form state is dirty