Game Crashing when Winning

Was 3 Points away from promotion, Had a boost saying win next game I advance 2 extra. I was in the 70th minute of the match winning 6-2, game started lagging, then froze, then said I was disconnected from my opponent or something like that and that my match result is currently under review. Went back to lobby game didnt count, and I went on to get whooped next game and lost the boost. Fix this game (I'll take fc points as compensation :) )