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Hello, I am getting this error whilst trying to encrypt/ decrypt some packets, have no idea why and no idea on how to fix it...

Could I get a solution to this or a way to use an AES-256 cipher for encrypting and decrypting packets

Thanks in advance

Full error message:
Exception in thread "SimpleNet-3" java.lang.IllegalArgumentException: A HeapByteBuffer cannot be given to a DirectByteBufferPool!
at pbbl.direct.DirectByteBufferPool.give(DirectByteBufferPool.java:45)
at com.github.simplenet.Client$1.completed(Client.java:192)
at com.github.simplenet.Client$1.completed(Client.java:187)
at java.base/sun.nio.ch.Invoker.invokeUnchecked(Invoker.java:127)
at java.base/sun.nio.ch.Invoker.invokeDirect(Invoker.java:158)
at java.base/sun.nio.ch.Invoker.invoke(Invoker.java:186)
at java.base/sun.nio.ch.AsynchronousSocketChannelImpl.write(AsynchronousSocketChannelImpl.java:379)
at java.base/sun.nio.ch.AsynchronousSocketChannelImpl.write(AsynchronousSocketChannelImpl.java:400)
at java.base/java.nio.channels.AsynchronousSocketChannel.write(AsynchronousSocketChannel.java:582)
at com.github.simplenet.Client.flush(Client.java:571)
at com.github.simplenet.packet.Packet.queueAndFlush(Packet.java:399)
at io.qubelet.server.ServerKt.sendPacket(Server.kt:19)
at io.qubelet.server.ServerKt$handlePacket$1$1.accept(Server.kt:63)
at io.qubelet.server.ServerKt$handlePacket$1$1.accept(Server.kt)
at com.github.simplenet.utility.exposed.data.DataReader.lambda$read$0(DataReader.java:76)
at com.github.simplenet.Client.lambda$readUntil$4(Client.java:521)
at com.github.simplenet.Client$Listener.completed(Client.java:135)
at com.github.simplenet.Client$Listener.completed(Client.java:82)
at java.base/sun.nio.ch.Invoker.invokeUnchecked(Invoker.java:127)
at java.base/sun.nio.ch.Invoker.invokeDirect(Invoker.java:158)
at java.base/sun.nio.ch.UnixAsynchronousSocketChannelImpl.implRead(UnixAsynchronousSocketChannelImpl.java:562)
at java.base/sun.nio.ch.AsynchronousSocketChannelImpl.read(AsynchronousSocketChannelImpl.java:277)
at java.base/sun.nio.ch.AsynchronousSocketChannelImpl.read(AsynchronousSocketChannelImpl.java:298)
at java.base/java.nio.channels.AsynchronousSocketChannel.read(AsynchronousSocketChannel.java:425)
at com.github.simplenet.Client$Listener.completed(Client.java:172)
at com.github.simplenet.Client$Listener.completed(Client.java:82)
at java.base/sun.nio.ch.Invoker.invokeUnchecked(Invoker.java:127)
at java.base/sun.nio.ch.Invoker.invokeDirect(Invoker.java:158)
at java.base/sun.nio.ch.UnixAsynchronousSocketChannelImpl.implRead(UnixAsynchronousSocketChannelImpl.java:562)
at java.base/sun.nio.ch.AsynchronousSocketChannelImpl.read(AsynchronousSocketChannelImpl.java:277)
at java.base/sun.nio.ch.AsynchronousSocketChannelImpl.read(AsynchronousSocketChannelImpl.java:298)
at java.base/java.nio.channels.AsynchronousSocketChannel.read(AsynchronousSocketChannel.java:425)
at com.github.simplenet.Client$Listener.completed(Client.java:172)
at com.github.simplenet.Client$Listener.completed(Client.java:82)
at java.base/sun.nio.ch.Invoker.invokeUnchecked(Invoker.java:127)
at java.base/sun.nio.ch.Invoker.invokeDirect(Invoker.java:158)
at java.base/sun.nio.ch.UnixAsynchronousSocketChannelImpl.implRead(UnixAsynchronousSocketChannelImpl.java:562)
at java.base/sun.nio.ch.AsynchronousSocketChannelImpl.read(AsynchronousSocketChannelImpl.java:277)
at java.base/sun.nio.ch.AsynchronousSocketChannelImpl.read(AsynchronousSocketChannelImpl.java:298)
at java.base/java.nio.channels.AsynchronousSocketChannel.read(AsynchronousSocketChannel.java:425)
at com.github.simplenet.Client$Listener.completed(Client.java:172)
at com.github.simplenet.Client$Listener.completed(Client.java:82)
at java.base/sun.nio.ch.Invoker.invokeUnchecked(Invoker.java:127)
at java.base/sun.nio.ch.Invoker$2.run(Invoker.java:219)
at java.base/sun.nio.ch.AsynchronousChannelGroupImpl$1.run(AsynchronousChannelGroupImpl.java:112)
at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1128)
at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:628)
at java.base/java.lang.Thread.run(Thread.java:834)