Hey, this issue is something I just had - I went away to my family's house this weekend, and when I got back today and booted up my computer, I had to do a system restore for some reason (still investigating why). Lo and behold, I join a ranked game, and after select, am unable to enter the game.

Please update if there's any new info on this.

Just happened to me. I don't know how to fix it. =(

Okay i had to system restore too and then had the whole can't get to log in screen after clicking play button. Now that I have found help on the forums for that problem i got this but... really disappointing and Riot seriously needs to find a fix for this like NOW! please and thank you Riot