pidgin -2.7.9.-gg-unable to read from the socket

[Pawel Ceranka]

Hi,
I have thie recouring problem with pidgin (current version pidgin 2.7.9)
ang (polish) gg protocol.
Whenever I try to send a massege the error occurs 'Unable to read
from the socket' (original massege is in polish: Użytkownik ***
został rozłączony Nie można odczytać z gniazda). It happens when I'm
connected via my wifi but also when i'm using my mobile internet. My 
contact list isn't empty. Does anyone know why this might happen?