diff --git a/addons/im_livechat/static/src/legacy/public_livechat_chatbot.js b/addons/im_livechat/static/src/legacy/public_livechat_chatbot.js
index 8e3fd39fa30..7bb6e80181d 100644
--- a/addons/im_livechat/static/src/legacy/public_livechat_chatbot.js
+++ b/addons/im_livechat/static/src/legacy/public_livechat_chatbot.js
@@ -101,6 +101,9 @@ import LivechatButton from '@im_livechat/legacy/widgets/livechat_button';
 
             this.messaging.publicLivechatGlobal.chatbot.update({
                 welcomeMessageTimeout: setTimeout(() => {
+                    if (!this.messaging.publicLivechatGlobal.chatWindow || !this.messaging.publicLivechatGlobal.chatWindow.exists()) {
+                        return;
+                    }
                     this._sendWelcomeChatbotMessage(stepIndex + 1, welcomeMessageDelay);
                     this.messaging.publicLivechatGlobal.chatWindow.renderMessages();
                 }, welcomeMessageDelay),
diff --git a/addons/im_livechat/static/src/public_models/chatbot.js b/addons/im_livechat/static/src/public_models/chatbot.js
index a1f8f0432b1..d5a2ed5ed0c 100644
--- a/addons/im_livechat/static/src/public_models/chatbot.js
+++ b/addons/im_livechat/static/src/public_models/chatbot.js
@@ -233,6 +233,9 @@ registerModel({
             this.messaging.publicLivechatGlobal.livechatButtonView.update({
                 isTypingTimeout: setTimeout(
                     () => {
+                        if (!this.messaging.publicLivechatGlobal.chatWindow || !this.messaging.publicLivechatGlobal.chatWindow.exists()) {
+                            return;
+                        }
                         this.messaging.publicLivechatGlobal.chatWindow.widget.$('.o_mail_thread_content').append(
                             $(qweb.render('im_livechat.legacy.chatbot.is_typing_message', {
                                 'chatbotImageSrc': `/im_livechat/operator/${
@@ -253,6 +256,9 @@ registerModel({
          * This will receive the next step and call step processing.
          */
         async triggerNextStep() {
+            if (!this.messaging.publicLivechatGlobal.chatWindow || !this.messaging.publicLivechatGlobal.chatWindow.exists()) {
+                return;
+            }
             let triggerNextStep = true;
             if (
                 this.currentStep &&
diff --git a/addons/im_livechat/static/src/public_models/public_livechat_global_notification_handler.js b/addons/im_livechat/static/src/public_models/public_livechat_global_notification_handler.js
index e96418c9634..04b4b9c3301 100644
--- a/addons/im_livechat/static/src/public_models/public_livechat_global_notification_handler.js
+++ b/addons/im_livechat/static/src/public_models/public_livechat_global_notification_handler.js
@@ -39,6 +39,9 @@ registerModel({
                     return;
                 }
                 case 'mail.channel.member/typing_status': {
+                    if (!this.messaging.publicLivechatGlobal.chatWindow || !this.messaging.publicLivechatGlobal.chatWindow.exists()) {
+                        return;
+                    }
                     const channelMemberData = payload;
                     if (channelMemberData.channel.id !== this.messaging.publicLivechatGlobal.publicLivechat.id) {
                         return;
@@ -58,6 +61,9 @@ registerModel({
                     return;
                 }
                 case 'mail.channel/new_message': {
+                    if (!this.messaging.publicLivechatGlobal.chatWindow || !this.messaging.publicLivechatGlobal.chatWindow.exists()) {
+                        return;
+                    }
                     if (payload.id !== this.messaging.publicLivechatGlobal.publicLivechat.id) {
                         return;
                     }
@@ -75,6 +81,9 @@ registerModel({
                     return;
                 }
                 case 'mail.message/insert': {
+                    if (!this.messaging.publicLivechatGlobal.chatWindow || !this.messaging.publicLivechatGlobal.chatWindow.exists()) {
+                        return;
+                    }
                     const message = this.messaging.publicLivechatGlobal.messages.find(message => message.id === payload.id);
                     if (!message) {
                         return;