I recently updaated my wordpress magazine blog according to the newest release. However, after I logged in, instead of the dashboard pulling up - the following wp-admin page did:
Fatal error: Call to undefined function is_network_admin() in /homepages/44/d215038298/htdocs/yfs/wp-admin/includes/template.php on line 1665
I nearly had a hernia and I cannot get into the administration area now? Does anyone know how to fix this? Please help!