Hello. After i upgraded my forum from 1.2.0 to 1.2.1 i got a problem. After i was finished upgrading, every page i tried to go to, inside the forum was blank. I was not allowed to do the /install at all. Every page i tries to go to inside the www.serr.no/xenforo just gives me this; Even the /install is just like the first picture. What can i do for getting it working again? I dont know what to do. It's very important that it works though, since it's one of Norways biggest ragecomic-site www.artige.no's Minecraft Server Forum. I know my english isn't good though, but i keep it being better.