Direct X Failure Patch 5.20

"An unknown DirextX error has occurred and League of Legends cannot start. Please make sure your video card is using the latest video drivers from the manufacturer."

It happened to my friend earlier tonight and we laughed at him, but then it happened to me as I was going to solo queue team builder. I cannot log in, short of restarting my entire computer(which takes a while, it's a bit old). As such, it put me way behind as a jungle main and I have decided not to rejoin that game. I feel sorry for my teammates that were relying on my and helping, but it wouldn't make a difference if I rejoined after ten minutes of rebooting and loading.

Just wanted to make sure this was known and see if anyone else is dealing with this problem, or if it was just my friend and myself. Please fix .