Game crashing and need to restart pc to relog into game

Today i was playing ranked and out of nowhere game crashed ( which is really abnormal for me ) so i tried to reconect but client crashed, game loading screen froze and i had to restart pc hard way to relog into game. After a few mins game crashed again but i just pressed reconect and i hopped into game nicely. Interestingly the same happened to all my teammates but enemy was just fine. So my whole team was dcing and reloging all game. Some even said they couldnt cast spells so they had to AltF4 and reload game themself. Question is why only one team experienced this while other was just fine. This smells toooo fishy for my liking..