BungeeCord High cpu Usage

Hello,

Today i get some problems with bungeecord, the cpu usage increase like 400% + then it crash and my players are disconnected.

I always was with 512mo (i tried with 2g) and my plugins was the same.

Plugins :

BungeeAdminTools
BungeeTabListPlus
BungeeWeb
BungeeYAML
Mineversechat
PlayerTabComplete
SwiftMOTD
YamlerBungee