joal: Can't add torrent - Tracker message violates expected protocol

I can’t add torrent from french semi-private tracker YGGtorrents. It is directly moved to archived folder. From logs, I see an error “Tracker message violates expected protocol” (see full log below). Is this a protection that the tracker have found?

This setup has worked with the same tracker a few month before.

[WARN ] 2022-10-23 17:21:17.511 [ annnouncer-1] o.a.j.c.t.c.a.t.TrackerResponseHandler: Tracker response is an error.

[WARN ] 2022-10-23 17:21:17.513 [ annnouncer-1] o.a.j.c.t.c.a.Announcer: `NZîæ00K&:UáTȹÐG¹ has failed to announce

com.turn.ttorrent.client.announce.AnnounceException:Failed to handle tracker response: Tracker message violates expected protocol (Could not decode tracker message (not B-encoded?)!) at org.araymond.joal.core.ttorrent.client.announcer.tracker.TrackerClient.announce(TrackerClient.java:66) at org.araymond.joal.core.ttorrent.client.announcer.Announcer.announce(Announcer.java:64) at org.araymond.joal.core.ttorrent.client.announcer.request.AnnouncerExecutor.lambda$execute$0(AnnouncerExecutor.java:40) at java.base/java.util.concurrent.FutureTask.run(Unknown Source) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(Unknown Source) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source) at java.base/java.lang.Thread.run(Unknown Source) Caused by: com.turn.ttorrent.client.announce.AnnounceException: Failed to handle tracker response: Tracker message violates expected protocol (Could not decode tracker message (not B-encoded?)!) at org.araymond.joal.core.ttorrent.client.announcer.tracker.TrackerClient.makeCallAndGetResponseAsByteBuffer(TrackerClient.java:108) at org.araymond.joal.core.ttorrent.client.announcer.tracker.TrackerClient.announce(TrackerClient.java:53) ... 6 more Caused by: java.io.IOException: Tracker message violates expected protocol (Could not decode tracker message (not B-encoded?)!) at org.araymond.joal.core.ttorrent.client.announcer.tracker.TrackerResponseHandler.handleResponse(TrackerResponseHandler.java:49) at org.araymond.joal.core.ttorrent.client.announcer.tracker.TrackerResponseHandler.handleResponse(TrackerResponseHandler.java:17) at org.araymond.joal.core.ttorrent.client.announcer.tracker.TrackerClient.handleResponse(TrackerClient.java:114) at org.araymond.joal.core.ttorrent.client.announcer.tracker.TrackerClient.makeCallAndGetResponseAsByteBuffer(TrackerClient.java:106) ... 7 more Caused by: com.turn.ttorrent.client.announce.AnnounceException: Tracker message violates expected protocol (Could not decode tracker message (not B-encoded?)!) ... 11 more Caused by: com.turn.ttorrent.common.protocol.TrackerMessage$MessageValidationException: Could not decode tracker message (not B-encoded?)! at com.turn.ttorrent.common.protocol.http.HTTPTrackerMessage.parse(HTTPTrackerMessage.java:42) at org.araymond.joal.core.ttorrent.client.announcer.tracker.TrackerResponseHandler.handleResponse(TrackerResponseHandler.java:43) ... 10 more [INFO ] 2022-10-23 17:21:17.517 [ annnouncer-1] o.a.j.c.t.c.a.Announcer:NZîæ00K&:UáTȹÐG¹ has failed to announce 5 times in a raw [INFO ] 2022-10-23 17:21:17.546 [ annnouncer-1] o.a.j.c.t.w.TorrentFileProvider: Torrent file deleting detected, hot deleted file: /data/torrents/Microsoft Office 2019 Professional Plus 2003 Build 12624.20520.torrent [INFO ] 2022-10-23 17:21:17.568 [ annnouncer-1] o.a.j.c.t.w.TorrentFileProvider: Successfully moved file: /data/torrents/Microsoft Office 2019 Professional Plus 2003 Build 12624.20520.torrent to archive folder `