Error on GET /api/agents running memgpt server with postgres

[sarahwooders]

INFO:     ::1:49155 - "GET /api/agents HTTP/1.1" 500 Internal Server Error
ERROR:    Exception in ASGI application
Traceback (most recent call last):
  File "/Users/sarahwooders/Library/Caches/pypoetry/virtualenvs/pymemgpt-7LnUJ2_3-py3.12/lib/python3.12/site-packages/uvicorn/protocols/http/httptools_impl.py", line 426, in run_asgi
    result = await app(  # type: ignore[func-returns-value]
             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/Users/sarahwooders/Library/Caches/pypoetry/virtualenvs/pymemgpt-7LnUJ2_3-py3.12/lib/python3.12/site-packages/uvicorn/middleware/proxy_headers.py", line 84, in __call__
    return await self.app(scope, receive, send)
           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/Users/sarahwooders/Library/Caches/pypoetry/virtualenvs/pymemgpt-7LnUJ2_3-py3.12/lib/python3.12/site-packages/fastapi/applications.py", line 1106, in __call__
    await super().__call__(scope, receive, send)
  File "/Users/sarahwooders/Library/Caches/pypoetry/virtualenvs/pymemgpt-7LnUJ2_3-py3.12/lib/python3.12/site-packages/starlette/applications.py", line 122, in __call__
    await self.middleware_stack(scope, receive, send)
  File "/Users/sarahwooders/Library/Caches/pypoetry/virtualenvs/pymemgpt-7LnUJ2_3-py3.12/lib/python3.12/site-packages/starlette/middleware/errors.py", line 184, in __call__
    raise exc
  File "/Users/sarahwooders/Library/Caches/pypoetry/virtualenvs/pymemgpt-7LnUJ2_3-py3.12/lib/python3.12/site-packages/starlette/middleware/errors.py", line 162, in __call__
    await self.app(scope, receive, _send)
  File "/Users/sarahwooders/Library/Caches/pypoetry/virtualenvs/pymemgpt-7LnUJ2_3-py3.12/lib/python3.12/site-packages/starlette/middleware/cors.py", line 83, in __call__
    await self.app(scope, receive, send)
  File "/Users/sarahwooders/Library/Caches/pypoetry/virtualenvs/pymemgpt-7LnUJ2_3-py3.12/lib/python3.12/site-packages/starlette/middleware/exceptions.py", line 79, in __call__
    raise exc
  File "/Users/sarahwooders/Library/Caches/pypoetry/virtualenvs/pymemgpt-7LnUJ2_3-py3.12/lib/python3.12/site-packages/starlette/middleware/exceptions.py", line 68, in __call__
    await self.app(scope, receive, sender)
  File "/Users/sarahwooders/Library/Caches/pypoetry/virtualenvs/pymemgpt-7LnUJ2_3-py3.12/lib/python3.12/site-packages/fastapi/middleware/asyncexitstack.py", line 20, in __call__
    raise e
  File "/Users/sarahwooders/Library/Caches/pypoetry/virtualenvs/pymemgpt-7LnUJ2_3-py3.12/lib/python3.12/site-packages/fastapi/middleware/asyncexitstack.py", line 17, in __call__
    await self.app(scope, receive, send)
  File "/Users/sarahwooders/Library/Caches/pypoetry/virtualenvs/pymemgpt-7LnUJ2_3-py3.12/lib/python3.12/site-packages/starlette/routing.py", line 718, in __call__
    await route.handle(scope, receive, send)
  File "/Users/sarahwooders/Library/Caches/pypoetry/virtualenvs/pymemgpt-7LnUJ2_3-py3.12/lib/python3.12/site-packages/starlette/routing.py", line 276, in handle
    await self.app(scope, receive, send)
  File "/Users/sarahwooders/Library/Caches/pypoetry/virtualenvs/pymemgpt-7LnUJ2_3-py3.12/lib/python3.12/site-packages/starlette/routing.py", line 66, in app
    response = await func(request)
               ^^^^^^^^^^^^^^^^^^^
  File "/Users/sarahwooders/Library/Caches/pypoetry/virtualenvs/pymemgpt-7LnUJ2_3-py3.12/lib/python3.12/site-packages/fastapi/routing.py", line 274, in app
    raw_response = await run_endpoint_function(
                   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/Users/sarahwooders/Library/Caches/pypoetry/virtualenvs/pymemgpt-7LnUJ2_3-py3.12/lib/python3.12/site-packages/fastapi/routing.py", line 193, in run_endpoint_function
    return await run_in_threadpool(dependant.call, **values)
           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/Users/sarahwooders/Library/Caches/pypoetry/virtualenvs/pymemgpt-7LnUJ2_3-py3.12/lib/python3.12/site-packages/starlette/concurrency.py", line 41, in run_in_threadpool
    return await anyio.to_thread.run_sync(func, *args)
           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/Users/sarahwooders/Library/Caches/pypoetry/virtualenvs/pymemgpt-7LnUJ2_3-py3.12/lib/python3.12/site-packages/anyio/to_thread.py", line 33, in run_sync
    return await get_asynclib().run_sync_in_worker_thread(
           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/Users/sarahwooders/Library/Caches/pypoetry/virtualenvs/pymemgpt-7LnUJ2_3-py3.12/lib/python3.12/site-packages/anyio/_backends/_asyncio.py", line 877, in run_sync_in_worker_thread
    return await future
           ^^^^^^^^^^^^
  File "/Users/sarahwooders/Library/Caches/pypoetry/virtualenvs/pymemgpt-7LnUJ2_3-py3.12/lib/python3.12/site-packages/anyio/_backends/_asyncio.py", line 807, in run
    result = context.run(func, *args)
             ^^^^^^^^^^^^^^^^^^^^^^^^
  File "/Users/sarahwooders/repos/memgpt-main/MemGPT/memgpt/server/rest_api/agents/index.py", line 50, in list_agents
    agents_data = server.list_agents(user_id=user_id)
                  ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/Users/sarahwooders/repos/memgpt-main/MemGPT/memgpt/server/server.py", line 858, in list_agents
    memgpt_agent = self._get_or_load_agent(user_id=user_id, agent_id=agent_state.id)
                   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/Users/sarahwooders/repos/memgpt-main/MemGPT/memgpt/server/server.py", line 359, in _get_or_load_agent
    memgpt_agent = self._load_agent(user_id=user_id, agent_id=agent_id)
                   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/Users/sarahwooders/repos/memgpt-main/MemGPT/memgpt/server/server.py", line 342, in _load_agent
    memgpt_agent = Agent(agent_state=agent_state, interface=interface)
                   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/Users/sarahwooders/repos/memgpt-main/MemGPT/memgpt/agent.py", line 308, in __init__
    assert all([isinstance(msg, Message) for msg in raw_messages]), (raw_messages, self.agent_state.state["messages"])
AssertionError: ([None, None, None, None, None, None, None, None, None, None], ['b30114a1-2130-4e0f-92c1-6ddb9cf02f76', 'ceeb2a79-b37a-4557-9b69-3706677946d5', '5b410457-90e6-4005-b02e-082ddfd27cbf', '76766496-50ba-4b68-adbc-cab7bd0b8181', 'cd1dacfc-a6f8-47c0-be15-85efcdfe5fa7', 'ffe109bc-3047-4e2a-8131-9ff2f9aa4e5f', 'f050a6e9-510b-4e4f-a12d-e426dd7f10c4', '2568d345-4951-4386-8e90-fd37db023901', 'c55d9851-2d96-4579-9634-4c2e5ab23825', 'e6842206-2192-42b7-bdc5-63e15367063b'])