Warning: Constant ABSPATH already defined in /customers/7/c/e/art-arnklit.dk/httpd.www/wordpress/wp-config.php on line 22

Fatal error: Uncaught ArgumentCountError: Too few arguments to function WP_Widget::__construct(), 0 passed in /customers/7/c/e/art-arnklit.dk/httpd.www/wordpress/wp-includes/class-wp-widget-factory.php on line 62 and at least 2 expected in /customers/7/c/e/art-arnklit.dk/httpd.www/wordpress/wp-includes/class-wp-widget.php:163
Stack trace:
#0 /customers/7/c/e/art-arnklit.dk/httpd.www/wordpress/wp-includes/class-wp-widget-factory.php(62): WP_Widget->__construct()
#1 /customers/7/c/e/art-arnklit.dk/httpd.www/wordpress/wp-includes/widgets.php(115): WP_Widget_Factory->register('template1_searc...')
#2 /customers/7/c/e/art-arnklit.dk/httpd.www/wordpress/wp-content/themes/VectorThemeRes/functions.php(217): register_widget('template1_searc...')
#3 /customers/7/c/e/art-arnklit.dk/httpd.www/wordpress/wp-settings.php(585): include('/customers/7/c/...')
#4 /customers/7/c/e/art-arnklit.dk/httpd.www/wordpress/wp-config.php(23): require_once('/customers/7/c/...')
#5 /customers/7/c/e/art-arnklit.dk/httpd.www/wordpress/wp-load.php(50): require_once('/customers/7/c/...')
#6 /customers/7/c/e/art-arnklit.dk/httpd.www/wordpress/wp-blog-header.php(13): require_once('/customers/7/c/...')
#7 /customers/7/c/e/art-arnklit.dk/httpd.www/wordpress/index.php(17): require('/customers/7/c/...')
#8 {main}
  thrown in /customers/7/c/e/art-arnklit.dk/httpd.www/wordpress/wp-includes/class-wp-widget.php on line 163