With new Project API key "client.beta.threads.runs.submit_tool_outputs_stream" Get an Error

Hello,
I create a new Project and generate a new API key, but when I call the API “client.beta.threads.runs.submit_tool_outputs_stream”, it has return an error “HTTP/1.1 404 Not Found”.
Use the same program code and Default project API key, everything is ok.
Why?