Unkown error when displaying queue acceptance screen

The error message was something like the one in the title. I sadly didn't screen it because I first thought wont be a big deal. I did attach league client logs with the link, I hope you find the bug there. Time approx 17:55.

I was in queue for ARAM, a game popped up, I accepted but stayed in the client instead of champ select. That error message was shown in the top right corner. I close client, reopen it, try to queue again and I have a whopping 15 min queue dodge timer. That is quite unfair. I didn't even dodge today.