Gatling exception with eclipse

Sometimes when i run my scenario with eclipse i got this exception : remotely closed and my scenario goes down.

how to fix it please?
gatling version 2.0.2
my scala version 2.10.4
eclipse kepler

This exception means that your server closed the connection while the client (Gatling) was trying to write on it.
Servers usually do that when they’re overloaded, or buggy.

Thanks for you answer.

I’ll watch the behavior of my server during simulation