diff --git a/src/sdk/MessageBus.ts b/src/sdk/MessageBus.ts
index b75165d3..6684a062 100644
--- a/src/sdk/MessageBus.ts
+++ b/src/sdk/MessageBus.ts
@@ -759,17 +759,15 @@ export default class MessageBus {
   }
 
   private sendMessage(message: any): void {
-    const targetOrigin = IframeReference.getTargetOrigin();
-    if (!targetOrigin) {
-      console.error('[MessageBus] sendMessage: targetOrigin not found');
-      return;
-    }
-    const iframe = IframeReference.getIframe();
-    if (!iframe) {
-      console.error('[MessageBus] sendMessage: iframe not found');
-      return;
-    }
-    iframe.contentWindow?.postMessage(message, targetOrigin);
+    this.isReady().then(() => {
+      try {
+        const targetOrigin = IframeReference.getTargetOrigin();
+        const iframe = IframeReference.getIframe();
+        iframe.contentWindow?.postMessage(message, targetOrigin);
+      } catch (error) {
+        console.error('[MessageBus] sendMessage: error', error);
+      }
+    }).catch(console.error);
   }
 
   private handleMessage(event: MessageEvent): void {
@@ -777,30 +775,25 @@ export default class MessageBus {
       return;
     }
 
-    const iframe = IframeReference.getIframe();
-    if (!iframe) {
-      console.error('[MessageBus] handleMessage: iframe not found');
-      return;
-    }
+    try {
+      const iframe = IframeReference.getIframe();
 
-    if (event.source !== iframe.contentWindow) {
-      console.error('[MessageBus] handleMessage: source not match');
-      return;
-    }
+      if (event.source !== iframe.contentWindow) {
+        console.error('[MessageBus] handleMessage: source not match');
+        return;
+      }
 
-    const targetOrigin = IframeReference.getTargetOrigin();
-    if (!targetOrigin) {
-      console.error('[MessageBus] handleMessage: targetOrigin not found');
-      return;
-    }
+      const targetOrigin = IframeReference.getTargetOrigin();
 
-    if (event.origin !== targetOrigin) {
-      console.error('[MessageBus] handleMessage: origin not match');
-      return;
-    }
+      if (event.origin !== targetOrigin) {
+        throw new Error('origin not match');
+      }
 
-    if (!event.data || typeof event.data !== 'object') {
-      console.error('[MessageBus] handleMessage: data not found');
+      if (!event.data || typeof event.data !== 'object') {
+        throw new Error('data not found');
+      }
+    } catch (error) {
+      console.error('[MessageBus] handleMessage:', error);
       return;
     }