RoomBundle Throws error!

[HikariPool-1 housekeeper] WARN com.zaxxer.hikari.pool.ProxyLeakTask - Connection leak detection triggered for com.mysql.jdbc.JDBC4Connection@6feaf6db, stack trace follows
java.lang.Exception: Apparent connection leak detected
        at com.eu.habbo.database.Database.prepare(Database.java:58)
        at com.eu.habbo.habbohotel.catalog.CatalogManager.createCatalogPage(CatalogManager.java:798)
        at com.eu.habbo.habbohotel.commands.RoomBundleCommand.handle(RoomBundleCommand.java:49)
        at com.eu.habbo.habbohotel.commands.CommandHandler.handleCommand(CommandHandler.java:183)
        at com.eu.habbo.habbohotel.rooms.Room.talk(Room.java:3140)
        at com.eu.habbo.habbohotel.rooms.Room.talk(Room.java:3092)
        at com.eu.habbo.messages.incoming.rooms.users.RoomUserTalkEvent.handle(RoomUserTalkEvent.java:31)
        at com.eu.habbo.messages.PacketManager.handlePacket(PacketManager.java:113)
        at com.eu.habbo.threading.runnables.ChannelReadHandler.run(ChannelReadHandler.java:28)
        at java.util.concurrent.Executors$RunnableAdapter.call(Unknown Source)
        at java.util.concurrent.FutureTask.run(Unknown Source)
        at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$201(Unknown Source)
        at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(Unknown Source)
        at java.util.concurrent.ThreadPoolExecutor.runWorker(Unknown Source)
        at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source)
        at java.lang.Thread.run(Unknown Source)
java.lang.NumberFormatException: For input string: ""
        at java.lang.NumberFormatException.forInputString(Unknown Source)
        at java.lang.Integer.parseInt(Unknown Source)
        at java.lang.Integer.valueOf(Unknown Source)
        at com.eu.habbo.habbohotel.catalog.layouts.RoomBundleLayout.getCatalogItems(RoomBundleLayout.java:44)
        at com.eu.habbo.messages.outgoing.catalog.CatalogPageComposer.compose(CatalogPageComposer.java:49)
        at com.eu.habbo.habbohotel.gameclients.GameClient.sendResponse(GameClient.java:49)
        at com.eu.habbo.messages.incoming.catalog.RequestCatalogPageEvent.handle(RequestCatalogPageEvent.java:26)
        at com.eu.habbo.messages.PacketManager.handlePacket(PacketManager.java:113)
        at com.eu.habbo.threading.runnables.ChannelReadHandler.run(ChannelReadHandler.java:28)
        at java.util.concurrent.Executors$RunnableAdapter.call(Unknown Source)
        at java.util.concurrent.FutureTask.run(Unknown Source)
        at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$201(Unknown Source)
        at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(Unknown Source)
        at java.util.concurrent.ThreadPoolExecutor.runWorker(Unknown Source)
        at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source)
        at java.lang.Thread.run(Unknown Source)
[HikariPool-1 housekeeper] WARN com.zaxxer.hikari.pool.ProxyLeakTask - Connection leak detection triggered for com.mysql.jdbc.JDBC4Connection@6442b881, stack trace follows
java.lang.Exception: Apparent connection leak detected
        at com.eu.habbo.database.Database.prepare(Database.java:58)
        at com.eu.habbo.habbohotel.catalog.CatalogManager.createCatalogPage(CatalogManager.java:798)
        at com.eu.habbo.habbohotel.commands.RoomBundleCommand.handle(RoomBundleCommand.java:49)
        at com.eu.habbo.habbohotel.commands.CommandHandler.handleCommand(CommandHandler.java:183)
        at com.eu.habbo.habbohotel.rooms.Room.talk(Room.java:3140)
        at com.eu.habbo.habbohotel.rooms.Room.talk(Room.java:3092)
        at com.eu.habbo.messages.incoming.rooms.users.RoomUserTalkEvent.handle(RoomUserTalkEvent.java:31)
        at com.eu.habbo.messages.PacketManager.handlePacket(PacketManager.java:113)
        at com.eu.habbo.threading.runnables.ChannelReadHandler.run(ChannelReadHandler.java:28)
        at java.util.concurrent.Executors$RunnableAdapter.call(Unknown Source)
        at java.util.concurrent.FutureTask.run(Unknown Source)
        at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$201(Unknown Source)
        at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(Unknown Source)
        at java.util.concurrent.ThreadPoolExecutor.runWorker(Unknown Source)
        at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source)
        at java.lang.Thread.run(Unknown Source)
java.lang.NumberFormatException: For input string: ""
        at java.lang.NumberFormatException.forInputString(Unknown Source)
        at java.lang.Integer.parseInt(Unknown Source)
        at java.lang.Integer.valueOf(Unknown Source)
        at com.eu.habbo.habbohotel.catalog.layouts.RoomBundleLayout.getCatalogItems(RoomBundleLayout.java:44)
        at com.eu.habbo.messages.outgoing.catalog.CatalogPageComposer.compose(CatalogPageComposer.java:49)
        at com.eu.habbo.habbohotel.gameclients.GameClient.sendResponse(GameClient.java:49)
        at com.eu.habbo.messages.incoming.catalog.RequestCatalogPageEvent.handle(RequestCatalogPageEvent.java:26)
        at com.eu.habbo.messages.PacketManager.handlePacket(PacketManager.java:113)
        at com.eu.habbo.threading.runnables.ChannelReadHandler.run(ChannelReadHandler.java:28)
        at java.util.concurrent.Executors$RunnableAdapter.call(Unknown Source)
        at java.util.concurrent.FutureTask.run(Unknown Source)
        at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$201(Unknown Source)
        at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(Unknown Source)
        at java.util.concurrent.ThreadPoolExecutor.runWorker(Unknown Source)
        at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source)
        at java.lang.Thread.run(Unknown Source)
[HikariPool-1 housekeeper] WARN com.zaxxer.hikari.pool.ProxyLeakTask - Connection leak detection triggered for com.mysql.jdbc.JDBC4Connection@26f09691, stack trace follows
java.lang.Exception: Apparent connection leak detected
        at com.eu.habbo.database.Database.prepare(Database.java:58)
        at com.eu.habbo.habbohotel.catalog.CatalogManager.createCatalogPage(CatalogManager.java:798)
        at com.eu.habbo.habbohotel.commands.RoomBundleCommand.handle(RoomBundleCommand.java:49)
        at com.eu.habbo.habbohotel.commands.CommandHandler.handleCommand(CommandHandler.java:183)
        at com.eu.habbo.habbohotel.rooms.Room.talk(Room.java:3140)
        at com.eu.habbo.habbohotel.rooms.Room.talk(Room.java:3092)
        at com.eu.habbo.messages.incoming.rooms.users.RoomUserTalkEvent.handle(RoomUserTalkEvent.java:31)
        at com.eu.habbo.messages.PacketManager.handlePacket(PacketManager.java:113)
        at com.eu.habbo.threading.runnables.ChannelReadHandler.run(ChannelReadHandler.java:28)
        at java.util.concurrent.Executors$RunnableAdapter.call(Unknown Source)
        at java.util.concurrent.FutureTask.run(Unknown Source)
        at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$201(Unknown Source)
        at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(Unknown Source)
        at java.util.concurrent.ThreadPoolExecutor.runWorker(Unknown Source)
        at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source)
        at java.lang.Thread.run(Unknown Source)
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