Patcher Issue

Last night I decided to boot League of Legends as I so often do and when it booted and started updating I happened to notice the letters PBE in the top right corner instead of NA. I knew I had a PBE account and had installed the PBE many months ago. So after a while of updating it was finally finished and when I logged in it was my PBE account. I do not understand why after i've opened the league client fine in the past, it would randomly change to the PBE now. Now whenever I go to the "Play now" button the website it comes up with a blank screen, no matter which browser I use. At this point I cannot play league (unless on the PBE) and I cannot fix the issue by redownloading the game, pls help :(