Crash when under DDOS

Hi guys, i'v got OVH anti-ddos free plan, but it take few minutes before OVH mitigate the DDOS and it seems that this time is enough TO not just make bungee lag, but CRASH with this : http://pastie.org/8881877 spammed over and over.

I would like to know if at least, there's ANY way to not make the bungeecord crash :/