diff --git a/packages/astrbot/long_term_memory.py b/packages/astrbot/long_term_memory.py
index ef91a1309..be2093490 100644
--- a/packages/astrbot/long_term_memory.py
+++ b/packages/astrbot/long_term_memory.py
@@ -63,10 +63,10 @@ class LongTermMemory:
     async def on_req_llm(self, event: AstrMessageEvent, req: ProviderRequest):
         if event.unified_msg_origin not in self.session_chats:
             return
-
-        req.system_prompt += f"""You are now in a chatroom. The chat history is as follows.:
-        {'\n---\n'.join(self.session_chats[event.unified_msg_origin])}
-"""
+        
+        chats_str = '\n---\n'.join(self.session_chats[event.unified_msg_origin])
+        req.system_prompt += "You are now in a chatroom. The chat history is as follows: \n"
+        req.system_prompt += chats_str
         if self.image_caption:
             req.system_prompt += (
                 "The images sent by the members are displayed in text form above."
diff --git a/packages/astrbot/main.py b/packages/astrbot/main.py
index cb0955d33..d3f80d06d 100644
--- a/packages/astrbot/main.py
+++ b/packages/astrbot/main.py
@@ -11,6 +11,7 @@ from astrbot.core.utils.io import download_dashboard, get_dashboard_version
 from astrbot.core.config.default import VERSION
 from collections import defaultdict
 from .long_term_memory import LongTermMemory
+from astrbot.core import logger
 
 from typing import Union
 
@@ -25,7 +26,10 @@ class Main(star.Star):
         
         self.ltm = None
         if self.context.get_config()['provider_ltm_settings']['group_icl_enable']:
-            self.ltm = LongTermMemory(self.context.get_config()['provider_ltm_settings'], self.context)
+            try:
+                self.ltm = LongTermMemory(self.context.get_config()['provider_ltm_settings'], self.context)
+            except BaseException as e:
+                logger.error(f"聊天增强 err: {e}")
     
     async def _query_astrbot_notice(self):
         try:
diff --git a/requirements.txt b/requirements.txt
index 432d5bb19..b645eb7f5 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,5 +1,4 @@
 pydantic~=2.10.3
-vchat
 aiohttp
 openai
 qq-botpy