standalone proxy: no connections since 2022/10/03

I am running snowflake as an standalone proxy. It worked quite well until 2022/10/03 (according to the log file). Since then I get zero connections. Part of my logfile around a daily system restart:

2022/10/14 01:07:20 In the last 30m0s, there were 0 connections. Traffic Relayed ↑ 0 B, ↓ 0 B.
2022/10/14 01:37:20 In the last 30m0s, there were 0 connections. Traffic Relayed ↑ 0 B, ↓ 0 B.
2022/10/14 01:49:27 error polling broker: read tcp [scrubbed]->[scrubbed]: read: connection reset by peer
2022/10/14 01:49:27 Error reading broker response: unexpected end of JSON input
2022/10/14 01:49:27 body: 
2022/10/14 01:49:27 bad offer from broker
2022/10/14 02:00:18 In the last 30m0s, there were 0 connections. Traffic Relayed ↑ 0 B, ↓ 0 B.
2022/10/14 02:00:18 starting
2022/10/14 02:00:18 WebRTC: Created offer
2022/10/14 02:00:18 WebRTC: Set local description
2022/10/14 02:00:18 Offer: {"type":"offer","sdp":"v=0\r\no=- 6893084309929587048 1665712818 IN IP4 [scrubbed]\r\ns=-\r\nt=0 0\r\na=fingerprint:sha-256 BF:6A:76:02:37:8A:96:A4:6C:16:12:16:F5:40:86:65:F7:06:85:92:9D:3E:D7:8C:85:60:85:85:54:5C:37:ED\r\na=group:BUNDLE 0\r\nm=application 9 UDP/DTLS/SCTP webrtc-datachannel\r\nc=IN IP4 [scrubbed]\r\na=setup:actpass\r\na=mid:0\r\na=sendrecv\r\na=sctp-port:5000\r\na=ice-ufrag:nhTnpZRAsoeUmxTh\r\na=ice-pwd:RLJbOGidLOUkKOLjDPXTUpWDbrRmWIgn\r\na=candidate:4056006514 1 udp 2130706431 [scrubbed] 43420 typ host\r\na=candidate:4056006514 2 udp 2130706431 [scrubbed] 43420 typ host\r\na=candidate:1367571592 1 udp 1694498815 [scrubbed] 43757 typ srflx raddr [scrubbed] rport 43757\r\na=candidate:1367571592 2 udp 1694498815 [scrubbed] 43757 typ srflx raddr [scrubbed] rport 43757\r\na=candidate:1309294897 1 udp 2130706431 [scrubbed] 43290 typ host\r\na=candidate:1309294897 2 udp 2130706431 [scrubbed] 43290 typ host\r\na=end-of-candidates\r\n"}
2022/10/14 02:00:44 NAT Type measurement: unknown -> restricted = restricted
2022/10/14 02:00:44 NAT type: restricted
2022/10/14 02:00:44 WebRTC: Created offer
2022/10/14 02:00:44 WebRTC: Set local description
2022/10/14 02:00:44 Offer: {"type":"offer","sdp":"v=0\r\no=- 1174260446418312236 1665712844 IN IP4 [scrubbed]\r\ns=-\r\nt=0 0\r\na=fingerprint:sha-256 71:98:09:F4:C4:3F:FB:78:58:26:0E:A8:E3:25:4F:E7:36:F4:E1:96:55:40:9E:8A:F2:8C:EC:53:04:7D:5F:E1\r\na=group:BUNDLE 0\r\nm=application 9 UDP/DTLS/SCTP webrtc-datachannel\r\nc=IN IP4 [scrubbed]\r\na=setup:actpass\r\na=mid:0\r\na=sendrecv\r\na=sctp-port:5000\r\na=ice-ufrag:YQHqUMIrLPzrDWPO\r\na=ice-pwd:KVyewBeBGOZfJJXmHKTJBNxwjVadqxkj\r\na=candidate:4056006514 1 udp 2130706431 [scrubbed] 40071 typ host\r\na=candidate:4056006514 2 udp 2130706431 [scrubbed] 40071 typ host\r\na=candidate:1367571592 1 udp 1694498815 [scrubbed] 50127 typ srflx raddr [scrubbed] rport 50127\r\na=candidate:1367571592 2 udp 1694498815 [scrubbed] 50127 typ srflx raddr [scrubbed] rport 50127\r\na=candidate:1309294897 1 udp 2130706431 [scrubbed] 55970 typ host\r\na=candidate:1309294897 2 udp 2130706431 [scrubbed] 55970 typ host\r\na=end-of-candidates\r\n"}
2022/10/14 02:01:41 NAT Type measurement: restricted -> restricted = restricted
2022/10/14 02:30:50 In the last 30m0s, there were 0 connections. Traffic Relayed ↑ 0 B, ↓ 0 B.
2022/10/14 03:00:50 In the last 30m0s, there were 0 connections. Traffic Relayed ↑ 0 B, ↓ 0 B.

The planned restart takes place at 02:00 GMT. I don't know whether the error at 01:49 has any meaning. Broker seems to be 37.218.245.111 (greenhost.nl).