update

database/index.ts

@@ -375,7 +375,7 @@ class ChatCacheDatabaseController {
 
     public appendMessages(chat: number, items: Message[]) {
         return new Promise<void>((resolve) => {
-            if (!this.db || !items.length) {
+            if (!this.db || !items || !items.length) {
                 return resolve();
             }
             const store = this.buildChatMessageStore(chat);