Hotfix Memory Leak

Signed-off-by: yoyosource <yoyosource@nidido.de>

BauSystem_Main/src/de/steamwar/bausystem/features/tpslimit/FreezeUtils.java

@@ -136,6 +136,10 @@ public class FreezeUtils {
     }
 
     private void createPackets() {
+        if (FreezeUtils.entities.stream().anyMatch(Entity::isDead)) {
+            entities.clear();
+            packets.clear();
+        }
         List<Entity> entities = Bukkit.getWorlds().get(0).getEntities().stream()
                 .filter(e -> !(e instanceof Player))
                 .filter(e -> !FreezeUtils.entities.contains(e))