http://bugs.winehq.org/show_bug.cgi?id=30546
--- Comment #7 from Kaspar kaspar.tint@gmail.com 2013-02-05 13:54:32 CST --- Hey!
I fixed the problem for my self by just deleting every file in RADS folder which is inside LOL instal directorty. Every log and versions file must be deleted and then it will launch good.