Hey,
So this will happen as part of suspending and resuming. In order to correctly handle headphone/speaker switching while the game is inactive, it will stop/close and reinitialise. For some reason, it is finding AAudio paused (AAUDIO_ERROR_INVALID_STATE is the error code) and failing to stop the stream.
The stop failing is not a surprise - we may have to look to downgrading the message to a warning instead of an error.