Fatal error: Uncaught Error: Call to undefined function wp_get_current_user() in /customers/c/0/6/pro-klassik.de/httpd.www/wp-includes/capabilities.php:1073
Stack trace:
#0 /customers/c/0/6/pro-klassik.de/httpd.www/wp-content/plugins/restore-classic-widgets/restore_classic_widgets.php(71): is_super_admin()
#1 /customers/c/0/6/pro-klassik.de/httpd.www/wp-settings.php(447): include_once('/customers/c/0/...')
#2 /customers/c/0/6/pro-klassik.de/httpd.www/wp-config.php(90): require_once('/customers/c/0/...')
#3 /customers/c/0/6/pro-klassik.de/httpd.www/wp-load.php(50): require_once('/customers/c/0/...')
#4 /customers/c/0/6/pro-klassik.de/httpd.www/wp-blog-header.php(13): require_once('/customers/c/0/...')
#5 /customers/c/0/6/pro-klassik.de/httpd.www/index.php(17): require('/customers/c/0/...')
#6 {main}
  thrown in /customers/c/0/6/pro-klassik.de/httpd.www/wp-includes/capabilities.php on line 1073