Client Crash Bug

This did not happen until after the mass outage of servers in NA this past weekend (the log=in/authenticating error). Afterwards, I was experiencing MASSIVE lag spikes and my ping was off the wall. There are no changes in my internet service provider and this issue did not arise until the mass outage. Anyway, my client crashes after each and every lobby I join. (i.e. the lobby is fine, I pick my champion) but when the lobby exits to the loading screen my client IMMEDIATELY stops working. I'm not sure what to do at this point.

I appreciate any and all feedback- thank you.