League always crashing, causing me to leave the champ select and giving me leaver busters/-lp

This has been happening to me for the past few weeks, since about 6.3 patch where, I am in champ select and I cant click anything. when I continue to click it will go greyish--white and say that the application has crashed, I log back in and I cant go back into that champ select. it has cost me my promos before because it happened 2 times in a row. what do I do to fix this. and can you stop taking my freaking lp and saying I leave games, I don't fucking afk and I don't deserve that leaverbust bs!

P.S. this happens to a few of my friends as well

Thank you ahead of time