Fatal error: Uncaught Error: Class 'WP_Customize_Section' not found in E:\www\flone\jogging\wp-content\themes\neve\inc\customizer\controls\react\upsell_section.php:20 Stack trace: #0 {main} thrown in E:\www\flone\jogging\wp-content\themes\neve\inc\customizer\controls\react\upsell_section.php on line 20