[本地部署]: 页面提问后，过大约一小时左右继续提问，前端显示error

[baiyi-os]

是否已存在现有反馈与解答？

• 我确认没有已有issue或discussion，且已阅读常见问题。

是否是一个代理配置相关的疑问？

• 我确认这不是一个代理配置相关的疑问。

错误描述

页面提问后，过大约一小时左右继续提问，前端显示error

复现操作

页面提问后，过大约一小时左右继续提问，前端显示error

错误日志

Traceback (most recent call last):
  File "/usr/local/lib/python3.10/site-packages/gradio/queueing.py", line 527, in process_events
    response = await route_utils.call_process_api(
  File "/usr/local/lib/python3.10/site-packages/gradio/route_utils.py", line 261, in call_process_api
    output = await app.get_blocks().process_api(
  File "/usr/local/lib/python3.10/site-packages/gradio/blocks.py", line 1786, in process_api
    result = await self.call_function(
  File "/usr/local/lib/python3.10/site-packages/gradio/blocks.py", line 1338, in call_function
    prediction = await anyio.to_thread.run_sync(
  File "/usr/local/lib/python3.10/site-packages/anyio/to_thread.py", line 56, in run_sync
    return await get_async_backend().run_sync_in_worker_thread(
  File "/usr/local/lib/python3.10/site-packages/anyio/_backends/_asyncio.py", line 2144, in run_sync_in_worker_thread
    return await future
  File "/usr/local/lib/python3.10/site-packages/anyio/_backends/_asyncio.py", line 851, in run
    result = context.run(func, *args)
  File "/usr/local/lib/python3.10/site-packages/gradio/utils.py", line 759, in wrapper
    response = f(*args, **kwargs)
  File "/home/ChuanhuChatGPT/modules/utils.py", line 46, in billing_info
    return current_model.billing_info()
AttributeError: 'NoneType' object has no attribute 'billing_info'
Traceback (most recent call last):
  File "/usr/local/lib/python3.10/site-packages/gradio/queueing.py", line 527, in process_events
    response = await route_utils.call_process_api(
  File "/usr/local/lib/python3.10/site-packages/gradio/route_utils.py", line 261, in call_process_api
    output = await app.get_blocks().process_api(
  File "/usr/local/lib/python3.10/site-packages/gradio/blocks.py", line 1786, in process_api
    result = await self.call_function(
  File "/usr/local/lib/python3.10/site-packages/gradio/blocks.py", line 1350, in call_function
    prediction = await utils.async_iteration(iterator)
  File "/usr/local/lib/python3.10/site-packages/gradio/utils.py", line 583, in async_iteration
    return await iterator.__anext__()
  File "/usr/local/lib/python3.10/site-packages/gradio/utils.py", line 576, in __anext__
    return await anyio.to_thread.run_sync(
  File "/usr/local/lib/python3.10/site-packages/anyio/to_thread.py", line 56, in run_sync
    return await get_async_backend().run_sync_in_worker_thread(
  File "/usr/local/lib/python3.10/site-packages/anyio/_backends/_asyncio.py", line 2144, in run_sync_in_worker_thread
    return await future
  File "/usr/local/lib/python3.10/site-packages/anyio/_backends/_asyncio.py", line 851, in run
    result = context.run(func, *args)
  File "/usr/local/lib/python3.10/site-packages/gradio/utils.py", line 559, in run_sync_iterator_async
    return next(iterator)
  File "/usr/local/lib/python3.10/site-packages/gradio/utils.py", line 742, in gen_wrapper
    response = next(iterator)
  File "/home/ChuanhuChatGPT/modules/utils.py", line 40, in predict
    iter = current_model.predict(*args)
AttributeError: 'NoneType' object has no attribute 'predict'
Traceback (most recent call last):
  File "/usr/local/lib/python3.10/site-packages/gradio/queueing.py", line 527, in process_events
    response = await route_utils.call_process_api(
  File "/usr/local/lib/python3.10/site-packages/gradio/route_utils.py", line 261, in call_process_api
    output = await app.get_blocks().process_api(
  File "/usr/local/lib/python3.10/site-packages/gradio/blocks.py", line 1786, in process_api
    result = await self.call_function(
  File "/usr/local/lib/python3.10/site-packages/gradio/blocks.py", line 1338, in call_function
    prediction = await anyio.to_thread.run_sync(
  File "/usr/local/lib/python3.10/site-packages/anyio/to_thread.py", line 56, in run_sync
    return await get_async_backend().run_sync_in_worker_thread(
  File "/usr/local/lib/python3.10/site-packages/anyio/_backends/_asyncio.py", line 2144, in run_sync_in_worker_thread
    return await future
  File "/usr/local/lib/python3.10/site-packages/anyio/_backends/_asyncio.py", line 851, in run
    result = context.run(func, *args)
  File "/usr/local/lib/python3.10/site-packages/gradio/utils.py", line 759, in wrapper
    response = f(*args, **kwargs)
  File "/home/ChuanhuChatGPT/modules/utils.py", line 92, in auto_name_chat_history
    return current_model.auto_name_chat_history(*args)
AttributeError: 'NoneType' object has no attribute 'auto_name_chat_history'

运行环境

- OS: 
- Browser: 
- Gradio version: 
- Python version:

补充说明

No response