This is not Llama index specific but

uvicorngunicornfastapisveltekit-fastapi-1    | INFO:openai:error_code=internal_error error_message='Internal server error' error_param=None error_type=auth_subrequest_error message='OpenAI API error received' stream_error=False
uvicorngunicornfastapisveltekit-fastapi-1    | WARNING:langchain.llms.openai:Retrying langchain.llms.openai.completion_with_retry.<locals>._completion_with_retry in 4.0 seconds as it raised APIError: Internal server error {
uvicorngunicornfastapisveltekit-fastapi-1    |     "error": {
uvicorngunicornfastapisveltekit-fastapi-1    |         "message": "Internal server error",
uvicorngunicornfastapisveltekit-fastapi-1    |         "type": "auth_subrequest_error",
uvicorngunicornfastapisveltekit-fastapi-1    |         "param": null,
uvicorngunicornfastapisveltekit-fastapi-1    |         "code": "internal_error"
uvicorngunicornfastapisveltekit-fastapi-1    |     }
uvicorngunicornfastapisveltekit-fastapi-1    | }
uvicorngunicornfastapisveltekit-fastapi-1    |  500 {'error': {'message': 'Internal server error', 'type': 'auth_subrequest_error', 'param': None, 'code': 'internal_error'}} {'Date': 'Tue, 07 Mar 2023 11:48:28 GMT', 'Content-Type': 'application/json; charset=utf-8', 'Content-Length': '166', 'Connection': 'keep-alive', 'Vary': 'Origin', 'X-Request-Id': '1f00430b867966779b7ef6942e4460ba', 'Strict-Transport-Security': 'max-age=15724800; includeSubDomains'}.