BungeeCord using a lot of RAM and CPU

Hi,
I'm running my BungeeCord on server with 128GB RAM and 2 CPU. Last time I have big problem with Bungee. About 1 minute after start Bungee starts to use a lot of CPU and RAM (screen from htop below). Nobody can't ping my proxy. Very often bungee crashes with (OutOfMemory Direct buffer memory error).

Screen from htop:


My startup command:
screen -h 1024 -dmS bungee -t bungee java -jar BungeeCord.jar

I will be grateful if somebody could help me