OpenAI API error: Messages with role 'tool' must be a response to a preceding message with 'tool_calls'

[scyoyo]

2025-03-16 09:53:42.037 | INFO | app.agent.base:run:137 - Executing step 17/20
2025-03-16 09:53:42.844 | ERROR | app.llm:ask_tool:426 - OpenAI API error: Error code: 400 - {'error': {'message': "Messages with role 'tool' must be a response to a preceding message with 'tool_calls'", 'type': 'invalid_request_error', 'param': None, 'code': 'invalid_request_error'}}
2025-03-16 09:53:42.844 | ERROR | app.llm:ask_tool:432 - API error: Error code: 400 - {'error': {'message': "Messages with role 'tool' must be a response to a preceding message with 'tool_calls'", 'type': 'invalid_request_error', 'param': None, 'code': 'invalid_request_error'}}

Got this error when I run a request. Not sure if it is a bug.