game crashes after champ select

So i am currently in my second 20 min. leaver buster. Though i have no control over stopping from afking. since the 6.19 patch i have been getting these errors after champ select. we go into the loading screen i start loading and then bam. lol client has stopped working. i get back on and then my client says there is corruption in you file working to fix it. then it applies the patches and it says im good to go. though during this long process my game has been remade. the first time this happened and i was put in a 5 min leaver buster que. then it happened again, 10 min que this time. then again, 20 min que, finally again. so im now on my 4th que ban due to leaver buster because all of those matches got remade. each time my client says my problem is resolved. i messaged riot support about this when it started and never got a reply. so basically im am just here to ask if anyone is experiencing this and why i am getting leaver buster so fast after never leaving games this entire season. like literally only games i have afked in are those 4 times my client bugged out.