Fatal error: Uncaught Error: Call to undefined function get_userdata() in /home/pmmusicc/public_html/mohsenmusic.ir/wp-includes/user.php:674 Stack trace: #0 /home/pmmusicc/public_html/mohsenmusic.ir/wp-content/plugins/wordpress-seo/admin/class-yoast-notification-center.php(952): get_user_option('yoast_notificat...', 0) #1 /home/pmmusicc/public_html/mohsenmusic.ir/wp-content/plugins/wordpress-seo/admin/class-yoast-notification-center.php(939): Yoast_Notification_Center->get_stored_notifications() #2 /home/pmmusicc/public_html/mohsenmusic.ir/wp-content/plugins/wordpress-seo/admin/class-yoast-notification-center.php(925): Yoast_Notification_Center->has_stored_notifications() #3 /home/pmmusicc/public_html/mohsenmusic.ir/wp-content/plugins/wordpress-seo/admin/class-yoast-notification-center.php(633): Yoast_Notification_Center->remove_storage() #4 /home/pmmusicc/public_html/mohsenmusic.ir/wp-includes/class-wp-hook.php(324): Yoast_Notification_Center->update_storage('') #5 /home/pmmusicc/public_html/mohsenmusic.ir/wp-includes/cl in /home/pmmusicc/public_html/mohsenmusic.ir/wp-includes/user.php on line 674