This problem is killing me. Im running a network with four different sites. Then I tried to install a Facebook comment plugin. It didn't install correctly so I thought I'd erase it. But now whenever I try to access anything in the network admin I get
Fatal error: Call to undefined function wp_get_current_user() in C:\xampp\htdocs\blogg\wp-includes\capabilities.php on line 1187
I can stil reach the child sites and manage them? Anyone got a clue..?
Im a real beginner and NOT so familiar with PHP so I'd be very happy if someone could give me a real "WordPress for dummies" explanation to solve the problems.
I have backups of the site, but since I cant access admin I cant upload a backupfile...