diff --git a/package-lock.json b/package-lock.json
index 1fb3cfe..3ed8c80 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -1,12 +1,12 @@
 {
     "name": "@codearts/core",
-    "version": "0.4.3",
+    "version": "0.4.4",
     "lockfileVersion": 2,
     "requires": true,
     "packages": {
         "": {
             "name": "@codearts/core",
-            "version": "0.4.3",
+            "version": "0.4.4",
             "license": "SEE LICENSE IN LICENSE",
             "dependencies": {
                 "@cloudide/messaging": "^0.1.0",
diff --git a/package.json b/package.json
index ce5319f..3e96054 100644
--- a/package.json
+++ b/package.json
@@ -5,7 +5,7 @@
         "codearts",
         "plugin"
     ],
-    "version": "0.4.3",
+    "version": "0.4.4",
     "license": "SEE LICENSE IN LICENSE",
     "description": "core plugin api of cloudide frontend and backend",
     "repository": {
diff --git a/src/node/plugin-api.ts b/src/node/plugin-api.ts
index 8c9cc86..4fe335f 100644
--- a/src/node/plugin-api.ts
+++ b/src/node/plugin-api.ts
@@ -214,9 +214,11 @@ export class Plugin {
 
     public dispatchMessage(sourceViewType: string, message: any): void {
         this.container.forEach(async (webviewContainer, viewType) => {
-            if (viewType !== sourceViewType) {
+            if (viewType !== sourceViewType && !webviewContainer.disposed) {
                 await webviewContainer.pageInitialized.promise;
-                webviewContainer.postMessage(message);
+                if (!webviewContainer.disposed) {
+                    webviewContainer.postMessage(message);
+                }
             }
         });
     }