Game crashing during loading screen (third time now)

This is for normal blind summoner's rift games, although it also happened on Teamfight Tactics. During the loading screen the game will now and then simply freeze and stop responding, which has now happened three times and is at this point making me report it to hopefully get a game today without a problem! Your support page says you are aware of it but perhaps if it is happening this much you should shut the game down for an hour or so and actually fix the thing?