fix

ygopro-server.coffee

@@ -1803,7 +1803,7 @@ class Room
             ROOM_ban_player(client.name, client.ip, "${random_ban_reason_flee}")
             if settings.modules.random_duel.record_match_scores and @random_type == 'M'
               ROOM_player_flee(client.name_vpass)
-      if @players.length and !(@windbot and client.is_host and @duel.stage == ygopro.constants.DUEL_STAGE.BEGIN) and !(@arena and @duel_stage == ygopro.constants.DUEL_STAGE.BEGIN and client.pos <= 3)
+      if @players.length and !(@windbot and client.is_host and @duel_stage == ygopro.constants.DUEL_STAGE.BEGIN) and !(@arena and @duel_stage == ygopro.constants.DUEL_STAGE.BEGIN and client.pos <= 3)
         left_name = (if settings.modules.hide_name and @duel_stage == ygopro.constants.DUEL_STAGE.BEGIN then "********" else client.name)
         ygopro.stoc_send_chat_to_room this, "#{left_name} ${left_game}" + if error then ": #{error}" else ''
         roomlist.update(this) if !@windbot and @duel_stage == ygopro.constants.DUEL_STAGE.BEGIN and settings.modules.http.websocket_roomlist

ygopro-server.js

@@ -2394,7 +2394,7 @@
             }
           }
         }
-        if (this.players.length && !(this.windbot && client.is_host && this.duel.stage === ygopro.constants.DUEL_STAGE.BEGIN) && !(this.arena && this.duel_stage === ygopro.constants.DUEL_STAGE.BEGIN && client.pos <= 3)) {
+        if (this.players.length && !(this.windbot && client.is_host && this.duel_stage === ygopro.constants.DUEL_STAGE.BEGIN) && !(this.arena && this.duel_stage === ygopro.constants.DUEL_STAGE.BEGIN && client.pos <= 3)) {
           left_name = (settings.modules.hide_name && this.duel_stage === ygopro.constants.DUEL_STAGE.BEGIN ? "********" : client.name);
           ygopro.stoc_send_chat_to_room(this, `${left_name} \${left_game}` + (error ? `: ${error}` : ''));
           if (!this.windbot && this.duel_stage === ygopro.constants.DUEL_STAGE.BEGIN && settings.modules.http.websocket_roomlist) {