File "/home/bai/.static-python/venvs/bai-25.6-manager/lib/python3.13/site-packages/ai/backend/manager/server.py", line 342, in exception_middleware
    resp = await handler(request)
           ^^^^^^^^^^^^^^^^^^^^^^
  File "/home/bai/.static-python/venvs/bai-25.6-manager/lib/python3.13/site-packages/ai/backend/manager/server.py", line 304, in api_middleware
    resp = await _handler(request)
           ^^^^^^^^^^^^^^^^^^^^^^^
  File "/home/bai/.static-python/venvs/bai-25.6-manager/lib/python3.13/site-packages/ai/backend/common/metrics/http.py", line 39, in metric_middleware
    resp = await handler(request)
           ^^^^^^^^^^^^^^^^^^^^^^
  File "/home/bai/.static-python/venvs/bai-25.6-manager/lib/python3.13/site-packages/ai/backend/manager/api/auth.py", line 593, in auth_middleware
    return await handler(request)
           ^^^^^^^^^^^^^^^^^^^^^^
  File "/home/bai/.static-python/venvs/bai-25.6-manager/lib/python3.13/site-packages/aiotools/func.py", line 23, in wrapped
    return await coro(*args, *cargs, **kwargs, **ckwargs)
           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/home/bai/.static-python/venvs/bai-25.6-manager/lib/python3.13/site-packages/ai/backend/manager/api/ratelimit.py", line 73, in rlim_middleware
    response = await handler(request)
               ^^^^^^^^^^^^^^^^^^^^^^
  File "/home/bai/.static-python/venvs/bai-25.6-manager/lib/python3.13/site-packages/aiohttp/web_middlewares.py", line 117, in impl
    return await handler(request)
           ^^^^^^^^^^^^^^^^^^^^^^
  File "/home/bai/.static-python/venvs/bai-25.6-manager/lib/python3.13/site-packages/ai/backend/manager/api/manager.py", line 80, in wrapped
    return await handler(request, *args, **kwargs)
           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/home/bai/.static-python/venvs/bai-25.6-manager/lib/python3.13/site-packages/ai/backend/manager/api/auth.py", line 600, in wrapped
    return await handler(request, *args, **kwargs)
           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/home/bai/.static-python/venvs/bai-25.6-manager/lib/python3.13/site-packages/ai/backend/manager/api/session.py", line 1132, in get_direct_access_info
    result = await root_ctx.processors.session.get_direct_access_info.wait_for_complete(
             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
    ...<4 lines>...
    )
    ^
  File "/home/bai/.static-python/venvs/bai-25.6-manager/lib/python3.13/site-packages/ai/backend/manager/actions/processor.py", line 74, in wait_for_complete
    return await self._run(action)
           ^^^^^^^^^^^^^^^^^^^^^^^
  File "/home/bai/.static-python/venvs/bai-25.6-manager/lib/python3.13/site-packages/ai/backend/manager/actions/processor.py", line 43, in _run
    result = await self._func(action)
             ^^^^^^^^^^^^^^^^^^^^^^^^
  File "/home/bai/.static-python/venvs/bai-25.6-manager/lib/python3.13/site-packages/ai/backend/manager/services/session/service.py", line 1297, in get_direct_access_info
    for sport in sess.main_kernel.service_ports:
                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
TypeError: 'NoneType' object is not iterable