Fatal error: Uncaught Error: Class 'ResponsiveSDK\Loader' not found in /www/htdocs/w0139aaa/biancas-buecherhimmel.de/wp-content/themes/responsive/core/rollback/start.php:31 Stack trace: #0 /www/htdocs/w0139aaa/biancas-buecherhimmel.de/wp-content/themes/responsive/functions.php(488): require_once() #1 /www/htdocs/w0139aaa/biancas-buecherhimmel.de/wp-includes/class-wp-hook.php(288): responsive_sdk_load_latest('') #2 /www/htdocs/w0139aaa/biancas-buecherhimmel.de/wp-includes/class-wp-hook.php(312): WP_Hook->apply_filters(NULL, Array) #3 /www/htdocs/w0139aaa/biancas-buecherhimmel.de/wp-includes/plugin.php(478): WP_Hook->do_action(Array) #4 /www/htdocs/w0139aaa/biancas-buecherhimmel.de/wp-settings.php(523): do_action('init') #5 /www/htdocs/w0139aaa/biancas-buecherhimmel.de/wp-config.php(90): require_once('/www/htdocs/w01...') #6 /www/htdocs/w0139aaa/biancas-buecherhimmel.de/wp-load.php(37): require_once('/www/htdocs/w01...') #7 /www/htdocs/w0139aaa/biancas-buecherhimmel.de/wp-blog-header.php(13): require_once('/www/htdocs/w01.. in /www/htdocs/w0139aaa/biancas-buecherhimmel.de/wp-content/themes/responsive/core/rollback/start.php on line 31