My PC crashed or internet went down

So my pc crashed for some reason when starting the game (in the loading screen) and i was playing 3v3 flex whit my friend but somone remaked and i got 5 games leaverbuster for 20 min and i it counted as a lose...... I mean game crashed my pc (its a really good pc) that is just not fair so can somone help me with this its not the first time this happend but it is first time for ranked game