[Core] Handle error when adding torrents to session at startup

deluge/core/torrentmanager.py

@@ -592,8 +592,12 @@ class TorrentManager(component.Component):
             if torrent_info:
                 magnet = None
 
+            try:
                 d = self.add(torrent_info=torrent_info, state=t_state, options=options, save_state=False,
                              magnet=magnet, resume_data=resume_data.get(t_state.torrent_id))
+            except AddTorrentError as ex:
+                log.warn("Error when adding torrent '%s' to session: %s", t_state.torrent_id, ex)
+            else:
                 deferreds.append(d)
 
         deferred_list = DeferredList(deferreds, consumeErrors=False)