This appears to be an error message related to file format compatibility. The error indicates that an invalid file format was attempted to be used.
The supported audio file formats are: flac, m4a, mp3, mp4, mpeg, mpga, oga, ogg, wav, and webm.
The message is formatted as a JSON error response with type "invalid_request_error". Both the "param" and "code" fields are null.
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