Fatal error: Uncaught Error: Class 'WP_Customize_Panel' not found in /home/users3/o/otm8427/www/femmes-sdf/wp-includes/customize/class-wp-customize-themes-panel.php:17 Stack trace: #0 {main} thrown in /home/users3/o/otm8427/www/femmes-sdf/wp-includes/customize/class-wp-customize-themes-panel.php on line 17