Client crash

After change the new client, the font client (idk what it called but not a game client) work well. But problem is when finished all the ban and picks, and when my game client start, than it turn off and this massage comes up(sorry i don't know how to put picture here. so i post in my facebook. https://www.facebook.com/photo.php?fbid=362327354163982&l=7795a269f3) I try 1 more game after the repair, it happen again and repair again. please fix this bug as fast as you can. Thank you