diff --git a/SubMind.py b/SubMind.py
index dfb2989..7351173 100644
--- a/SubMind.py
+++ b/SubMind.py
@@ -418,8 +418,8 @@ async def check_and_send_reminders(context: CallbackContext):
                     message += " 将会自动续费。"
                     keyboard = None
 
-            elif renewal_type == 'manual' and sub['reminder_days'] > 0:
-                reminder_date = due_date - datetime.timedelta(days=sub['reminder_days'])
+            elif renewal_type == 'manual' and int(sub['reminder_days'] or 0) > 0:
+                reminder_date = due_date - datetime.timedelta(days=int(sub['reminder_days']))
                 if reminder_date == today:
                     days_left = (due_date - today).days
                     days_text = f"<b>{days_left}天后</b>" if days_left > 0 else "<b>今天</b>"
@@ -440,7 +440,7 @@ async def check_and_send_reminders(context: CallbackContext):
                 logger.info(f"Reminder sent for sub_id {sub['id']}")
 
         except Exception as e:
-            logger.error(f"Failed to process reminder for sub_id {sub.get('id', 'N/A')}: {e}")
+            logger.error(f"Failed to process reminder for sub_id {sub['id']}: {e}")
 # --- 命令处理器 ---
 async def start(update: Update, context: CallbackContext):
     user_id = update.effective_user.id
@@ -746,7 +746,7 @@ async def import_upload_received(update: Update, context: CallbackContext):
                     renewal_base = str(row['renewal_base']).lower().strip()
                     if renewal_base not in valid_renewal_bases:
                         raise ValueError(f"无效续订起算方式: {renewal_base}")
-                notes = str(row['notes']).strip() if pd.notna(row['notes']) else None
+                notes = str(row['notes']).strip() if ('notes' in df.columns and pd.notna(row['notes'])) else None
                 if notes and len(notes) > MAX_NOTES_LEN:
                     raise ValueError(f"备注过长（>{MAX_NOTES_LEN}）")
                 name = str(row['name']).strip()
@@ -1804,15 +1804,18 @@ async def update_bot(update: Update, context: CallbackContext):
             await update.message.reply_text(f"更新失败（reset）：\n<code>{escape_html(err)}</code>", parse_mode='HTML')
             return
 
-        pip_proc = await asyncio.to_thread(
-            _run_cmd,
-            [sys.executable, "-m", "pip", "install", "-r", "requirements.txt"],
-            repo_dir
-        )
+        pip_cmd = [sys.executable, "-m", "pip", "install", "-r", "requirements.txt"]
+        pip_proc = await asyncio.to_thread(_run_cmd, pip_cmd, repo_dir)
         if pip_proc.returncode != 0:
-            err = (pip_proc.stderr or pip_proc.stdout or "未知错误").strip()
-            await update.message.reply_text(f"依赖安装失败：\n<code>{escape_html(err[-1800:])}</code>", parse_mode='HTML')
-            return
+            pip_output = (pip_proc.stderr or "") + (pip_proc.stdout or "")
+            # Debian/Ubuntu 的系统托管 Python（PEP 668）会拒绝直接安装，需加 --break-system-packages
+            if "externally-managed-environment" in pip_output:
+                await update.message.reply_text("检测到系统托管的 Python 环境（PEP 668），改用 --break-system-packages 重试…")
+                pip_proc = await asyncio.to_thread(_run_cmd, pip_cmd + ["--break-system-packages"], repo_dir)
+            if pip_proc.returncode != 0:
+                err = (pip_proc.stderr or pip_proc.stdout or "未知错误").strip()
+                await update.message.reply_text(f"依赖安装失败：\n<code>{escape_html(err[-1800:])}</code>", parse_mode='HTML')
+                return
 
         await update.message.reply_text(
             f"更新完成（{escape_html(remote_name)} {escape_html(branch_name)}），正在重启机器人…",
@@ -1870,6 +1873,9 @@ def main():
             time=datetime.time(hour=9, minute=0, tzinfo=datetime.timezone(datetime.timedelta(hours=8))),
             name='daily_reminders'
         )
+        # 启动后稍作等待补跑一次，避免重启导致当天的提醒被跳过（函数内部按 last_reminded_date 去重）
+        app.job_queue.run_once(check_and_send_reminders, when=datetime.timedelta(seconds=15),
+                               name='startup_reminder_catchup')
         logger.info("Daily reminder job scheduled.")
 
     application.post_init = post_init
diff --git a/requirements.txt b/requirements.txt
index 47cfca3..ac00acf 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,4 +1,4 @@
-python-telegram-bot>=20.0
+python-telegram-bot[job-queue]>=20.0
 pandas
 matplotlib
 python-dateutil