diff --git a/web/src/components/message-item/index.tsx b/web/src/components/message-item/index.tsx
index 9e152c607..cc040c167 100644
--- a/web/src/components/message-item/index.tsx
+++ b/web/src/components/message-item/index.tsx
@@ -39,7 +39,7 @@ const MessageItem = ({
   item,
   reference,
   loading = false,
-  avatar = '',
+  avatar,
   sendLoading = false,
   clickDocumentButton,
   index,
@@ -102,13 +102,7 @@ const MessageItem = ({
           })}
         >
           {item.role === MessageType.User ? (
-            <Avatar
-              size={40}
-              src={
-                avatar ??
-                'https://zos.alipayobjects.com/rmsportal/jkjgkEfvpUPVyRjUImniVslZfWPnJuuZ.png'
-              }
-            />
+            <Avatar size={40} src={avatar ?? '/logo.svg'} />
           ) : (
             <AssistantIcon></AssistantIcon>
           )}
diff --git a/web/src/pages/chat/utils.ts b/web/src/pages/chat/utils.ts
index a14300c47..820bd2ca5 100644
--- a/web/src/pages/chat/utils.ts
+++ b/web/src/pages/chat/utils.ts
@@ -1,5 +1,6 @@
 import { MessageType } from '@/constants/chat';
 import { IConversation, IReference } from '@/interfaces/database/chat';
+import { isEmpty } from 'lodash';
 import { EmptyConversationId } from './constants';
 import { IMessage } from './interface';
 
@@ -34,9 +35,9 @@ export const buildMessageItemReference = (
   const referenceIndex = assistantMessages.findIndex(
     (x) => x.id === message.id,
   );
-  const reference = message?.reference
+  const reference = !isEmpty(message?.reference)
     ? message?.reference
-    : (conversation?.reference ?? {})[referenceIndex];
+    : (conversation?.reference ?? [])[referenceIndex];
 
-  return reference;
+  return reference ?? { doc_aggs: [], chunks: [], total: 0 };
 };
diff --git a/web/src/utils/chat.ts b/web/src/utils/chat.ts
index 1caf00179..498b337fc 100644
--- a/web/src/utils/chat.ts
+++ b/web/src/utils/chat.ts
@@ -1,6 +1,7 @@
 import { EmptyConversationId, MessageType } from '@/constants/chat';
 import { Message } from '@/interfaces/database/chat';
 import { IMessage } from '@/pages/chat/interface';
+import { omit } from 'lodash';
 import { v4 as uuid } from 'uuid';
 
 export const isConversationIdExist = (conversationId: string) => {
@@ -27,7 +28,7 @@ export const getMessagePureId = (id?: string) => {
 export const buildMessageListWithUuid = (messages?: Message[]) => {
   return (
     messages?.map((x: Message | IMessage) => ({
-      ...x,
+      ...omit(x, 'reference'),
       id: buildMessageUuid(x),
     })) ?? []
   );