src/de/steamwar/bungeecore/comms/handlers/FightEndsHandler.java

@@ -129,9 +129,16 @@ public class FightEndsHandler implements SpigotHandler {
         if (!gameModeGames.containsKey(gameMode)) {
             return false;
         }
-        List<Game> games = gameModeGames.get(gameMode);
+        LinkedList<Game> games = gameModeGames.get(gameMode);
         long lifetime = fightRanges.getOrDefault(gameMode, defaultFightRange);
-        games.removeIf(game -> game.livedMillis() > lifetime);
+        while (!games.isEmpty()) {
+            Game game = games.getFirst();
+            if (game.livedMillis() > lifetime) {
+                games.removeFirst();
+            } else {
+                break;
+            }
+        }
         return games.stream().filter(game -> game.isSame(bluePlayers, redPlayers)).count() > fightCounts.getOrDefault(gameMode, defaultFightCount);
     }