Constant issues with the new client recently [CLIENT]

I keep getting a lot of odd crashes and other issues. The client will regularly spontaneously close/crash in champion select (forcing me to reopen it and log back in, though not making me dodge when this happens). I also regularly experience issues with not being able to ban/pick champions because the champions will not pop up or aren't visible when I need to ban or pick. I keep losing LP because of the latter issue, it's starting to become extremely frustrating.