Help with a network error

I need help with a problem i have been having in a network game that me and my friend have been playing. What happens is we go into the first game of the season and i normally finish my game first he is on his. around the 35th minute mark it comes up pure virtual function call and something about runtime error R6025 This closes the game. We have now tried it 3 times and every time this happens.




Any help would be appreciated as this is stopping us from playing the game.

Thanks.