Fatal error: Uncaught Error: Call to undefined function wp_get_current_user() in /home1/rusinka/public_html/wp-includes/class-wp.php:595 Stack trace: #0 /home1/rusinka/public_html/wp-settings.php(395): WP->init() #1 /home1/rusinka/public_html/wp-config.php(90): require_once('/home1/rusinka/...') #2 /home1/rusinka/public_html/wp-load.php(39): require_once('/home1/rusinka/...') #3 /home1/rusinka/public_html/wp-blog-header.php(13): require_once('/home1/rusinka/...') #4 /home1/rusinka/public_html/index.php(17): require('/home1/rusinka/...') #5 {main} thrown in /home1/rusinka/public_html/wp-includes/class-wp.php on line 595