Can't create a stream

When I execute the step of requesting Start a stream, the server returns 500. How to fix it?

OkHttpClient client = new OkHttpClient();

MediaType mediaType = MediaType.parse("application/json");
RequestBody body = RequestBody.create(mediaType, "{"answer":{"type":"answer","sdp":"v=0\\r\\no=- 1692753543621596 1 IN IP4 52.34.163.218\\r\\ns=Mountpoint 1047863422755811\\r\\nt=0 0\\r\\na=group:BUNDLE a v d\\r\\na=ice-options:trickle\\r\\na=fingerprint:sha-256 FB:43:43:0C:B3:98:6F:D9:82:BD:72:82:D1:92:A8:4E:AC:3F:98:45:23:08:16:F3:25:BF:4C:DC:C0:06:7A:DB\\r\\na=extmap-allow-mixed\\r\\na=msid-semantic: WMS *\\r\\nm=audio 9 UDP/TLS/RTP/SAVPF 111\\r\\nc=IN IP4 52.34.163.218\\r\\na=sendonly\\r\\na=mid:a\\r\\na=rtcp-mux\\r\\na=ice-ufrag:qhJj\\r\\na=ice-pwd:n5yjymBIJ7gXVK9lw3ZCeq\\r\\na=ice-options:trickle\\r\\na=setup:actpass\\r\\na=rtpmap:111 opus/48000/2\\r\\na=rtcp-fb:111 transport-cc\\r\\na=extmap:2 http://www.webrtc.org/experiments/rtp-hdrext/abs-send-time\\\\r\\\\na=extmap:4 urn:ietf:params:rtp-hdrext:sdes:mid\\r\\na=msid:janus janusa\\r\\na=ssrc:4180256172 cname:janus\\r\\na=candidate:1 1 udp 2015363327 52.34.163.218 39433 typ host\\r\\na=candidate:2 1 udp 1679819007 52.34.163.218 39433 typ srflx raddr 172.18.0.4 rport 39433\\r\\na=end-of-candidates\\r\\nm=video 9 UDP/TLS/RTP/SAVPF 100 101\\r\\nc=IN IP4 52.34.163.218\\r\\na=sendonly\\r\\na=mid:v\\r\\na=rtcp-mux\\r\\na=ice-ufrag:qhJj\\r\\na=ice-pwd:n5yjymBIJ7gXVK9lw3ZCeq\\r\\na=ice-options:trickle\\r\\na=setup:actpass\\r\\na=rtpmap:100 VP8/90000\\r\\na=rtcp-fb:100 ccm fir\\r\\na=rtcp-fb:100 nack\\r\\na=rtcp-fb:100 nack pli\\r\\na=rtcp-fb:100 goog-remb\\r\\na=rtcp-fb:100 transport-cc\\r\\na=extmap:2 http://www.webrtc.org/experiments/rtp-hdrext/abs-send-time\\\\r\\\\na=extmap:4 urn:ietf:params:rtp-hdrext:sdes:mid\\r\\na=rtpmap:101 rtx/90000\\r\\na=fmtp:101 apt=100\\r\\na=ssrc-group:FID 737998559 836966506\\r\\na=msid:janus janusv\\r\\na=ssrc:737998559 cname:janus\\r\\na=ssrc:836966506 cname:janus\\r\\na=candidate:1 1 udp 2015363327 52.34.163.218 39433 typ host\\r\\na=candidate:2 1 udp 1679819007 52.34.163.218 39433 typ srflx raddr 172.18.0.4 rport 39433\\r\\na=end-of-candidates\\r\\nm=application 9 UDP/DTLS/SCTP webrtc-datachannel\\r\\nc=IN IP4 52.34.163.218\\r\\na=sendrecv\\r\\na=mid:d\\r\\na=sctp-port:5000\\r\\na=ice-ufrag:qhJj\\r\\na=ice-pwd:n5yjymBIJ7gXVK9lw3ZCeq\\r\\na=ice-options:trickle\\r\\na=setup:actpass\\r\\na=candidate:1 1 udp 2015363327 52.34.163.218 39433 typ host\\r\\na=candidate:2 1 udp 1679819007 52.34.163.218 39433 typ srflx raddr 172.18.0.4 rport 39433\\r\\na=end-of-candidates\\r\\n"},"session_id":"AWSALB=dScRRT+IuIU+W7SiBSPFukGsixYSvPfBfhru58EiTM7B6CsM4yauGH22AOni1x1PWFJ8SQsPOaj+0bGN37cZWgN+H6wvqyCL4q6LMj4SKtw6r+3yVmpiuiGpI8oB; Expires=Wed, 30 Aug 2023 01:19:03 GMT; Path=/; AWSALBCORS=dScRRT+IuIU+W7SiBSPFukGsixYSvPfBfhru58EiTM7B6CsM4yauGH22AOni1x1PWFJ8SQsPOaj+0bGN37cZWgN+H6wvqyCL4q6LMj4SKtw6r+3yVmpiuiGpI8oB; Expires=Wed, 30 Aug 2023 01:19:03 GMT; Path=/; SameSite=None; Secure"}");
Request request = new Request.Builder()
.url("https://api.d-id.com/talks/streams/strm_XPy16nNQbGFs5ZDN3Inek/sdp")
.post(body)
.addHeader("accept", "application/json")
.addHeader("content-type", "application/json")
.addHeader("authorization", "Basic ZVdsdWNHWXhNak5BWjIxaGFXd3VZMjl0OklBeVhnOGxOcnlsMmR0dHpPblZEUg==")
.build();

Response response = client.newCall(request).execute();

{
"kind": "UnknownError",
"description": "Internal Server Error"
}