500 internal server error

[beettlle]

Hello, I am trying to play music to a HomePod from a RaspberryPi and I'm getting the following error:

Mar 21 22:49:22 patchbox pulseaudio[5579]: W: [pulseaudio] module-loopback.c: Configured latency of 1.00 ms is smaller than minimum latency, using minimum instead
Mar 21 22:49:22 patchbox pulseaudio[5579]: W: [pulseaudio] module-loopback.c: Cannot set requested sink latency of 138.38 ms, adjusting to 250.00 ms
Mar 21 22:49:22 patchbox pulseaudio[5579]: W: [pulseaudio] rtsp_client.c: Unexpected/Unhandled response: RTSP/1.0 500 Internal Server Error
Mar 21 22:49:22 patchbox pulseaudio[5579]: W: [pulseaudio] rtsp_client.c: Unexpected/Unhandled response: Content-Length: 0
Mar 21 22:49:22 patchbox pulseaudio[5579]: W: [pulseaudio] rtsp_client.c: Unexpected/Unhandled response: Server: AirTunes/535.4.41
Mar 21 22:49:22 patchbox pulseaudio[5579]: W: [pulseaudio] rtsp_client.c: Unexpected/Unhandled response: CSeq: 2

I believe I am running the latest version

$ pulseaudio --version pulseaudio 12.2

Any help would be greatly appreciated.