Fatal error: Uncaught ArgumentCountError: array_merge() does not accept unknown named parameters in /customers/4/5/1/rubenclijsters.com/httpd.www/wp-includes/widgets.php:1261 Stack trace: #0 /customers/4/5/1/rubenclijsters.com/httpd.www/wp-includes/widgets.php(1261): array_merge(wp_inactive_widgets: Array) #1 /customers/4/5/1/rubenclijsters.com/httpd.www/wp-includes/widgets.php(1216): retrieve_widgets(true) #2 /customers/4/5/1/rubenclijsters.com/httpd.www/wp-includes/class-wp-hook.php(290): _wp_sidebars_changed('hazel') #3 /customers/4/5/1/rubenclijsters.com/httpd.www/wp-includes/class-wp-hook.php(312): WP_Hook->apply_filters(NULL, Array) #4 /customers/4/5/1/rubenclijsters.com/httpd.www/wp-includes/plugin.php(478): WP_Hook->do_action(Array) #5 /customers/4/5/1/rubenclijsters.com/httpd.www/wp-includes/theme.php(2967): do_action('after_switch_th...', 'hazel', Object(WP_Theme)) #6 /customers/4/5/1/rubenclijsters.com/httpd.www/wp-includes/class-wp-hook.php(288): check_theme_switched('') #7 /customers/4/5/1/rubenclijsters.com/httpd.www/wp-includes/class-wp-hook.php(312): WP_Hook->apply_filters(NULL, Array) #8 /customers/4/5/1/rubenclijsters.com/httpd.www/wp-includes/plugin.php(478): WP_Hook->do_action(Array) #9 /customers/4/5/1/rubenclijsters.com/httpd.www/wp-settings.php(523): do_action('init') #10 /customers/4/5/1/rubenclijsters.com/httpd.www/wp-config.php(118): require_once('/customers/4/5/...') #11 /customers/4/5/1/rubenclijsters.com/httpd.www/wp-load.php(37): require_once('/customers/4/5/...') #12 /customers/4/5/1/rubenclijsters.com/httpd.www/wp-blog-header.php(13): require_once('/customers/4/5/...') #13 /customers/4/5/1/rubenclijsters.com/httpd.www/index.php(17): require('/customers/4/5/...') #14 {main} thrown in /customers/4/5/1/rubenclijsters.com/httpd.www/wp-includes/widgets.php on line 1261