Fatal error: Uncaught Error: Class 'ResponsiveSDK\Loader' not found in /home/stasse21/domains/stassen-installatie.nl/public_html/wp-content/themes/responsive/core/rollback/start.php:31 Stack trace: #0 /home/stasse21/domains/stassen-installatie.nl/public_html/wp-content/themes/responsive/functions.php(488): require_once() #1 /home/stasse21/domains/stassen-installatie.nl/public_html/wp-includes/class-wp-hook.php(298): responsive_sdk_load_latest('') #2 /home/stasse21/domains/stassen-installatie.nl/public_html/wp-includes/class-wp-hook.php(323): WP_Hook->apply_filters(NULL, Array) #3 /home/stasse21/domains/stassen-installatie.nl/public_html/wp-includes/plugin.php(453): WP_Hook->do_action(Array) #4 /home/stasse21/domains/stassen-installatie.nl/public_html/wp-settings.php(448): do_action('init') #5 /home/stasse21/domains/stassen-installatie.nl/public_html/wp-config.php(102): require_once('/home/stasse21/...') #6 /home/stasse21/domains/stassen-installatie.nl/public_html/wp-load.php(37): require_once('/home/stasse21/...') #7 /hom in /home/stasse21/domains/stassen-installatie.nl/public_html/wp-content/themes/responsive/core/rollback/start.php on line 31