Buggy Client after 9.19

Since 9.19 the client keeps crashing when I try to go in games, additionally I just recently had an issue where we had a team member who was not able to connect and yet we were not able to ff at 3 minutes. Personally my client has frozen a bunch of times and completely crashed while loading into the game, I literally have to log off my computer to shutdown the League client. I mainly play ranked so this is a very frustrating bug to have happen, I have not had it happen during any other game modes yet though.