دریافت ناگهانی ارور بعد از فعال کردن قالب

با سلام و عرض ادب 

من درحال نصب پوسته جدید بودم که این ارور را دریافت کردم 
Fatal error: Uncaught ArgumentCountError: array_merge() does not accept unknown named parameters in C:\xampp\htdocs\wp\wp-includes\widgets.php:1261 Stack trace: #0 C:\xampp\htdocs\wp\wp-includes\widgets.php(1261): array_merge(wp_inactive_widgets: Array, right-sidebar: Array, footer-widget-area: Array, woocommerce-widget-area: Array) #1 C:\xampp\htdocs\wp\wp-includes\widgets.php(1216): retrieve_widgets(true) #2 C:\xampp\htdocs\wp\wp-includes\class-wp-hook.php(290): _wp_sidebars_changed(‘Twenty Twenty’) #3 C:\xampp\htdocs\wp\wp-includes\class-wp-hook.php(312): WP_Hook->apply_filters(NULL, Array) #4 C:\xampp\htdocs\wp\wp-includes\plugin.php(478): WP_Hook->do_action(Array) #5 C:\xampp\htdocs\wp\wp-includes\theme.php(2964): do_action(‘after_switch_th…’, ‘Twenty Twenty’, Object(WP_Theme)) #6 C:\xampp\htdocs\wp\wp-includes\class-wp-hook.php(288): check_theme_switched(”) #7 C:\xampp\htdocs\wp\wp-includes\class-wp-hook.php(312): WP_Hook->apply_filters(NULL, Array) #8 C:\xampp\htdocs\wp\wp-includes\plugin.php(478): WP_Hook->do_action(Array) #9 C:\xampp\htdocs\wp\wp-settings.php(523): do_action(‘init’) #10 C:\xampp\htdocs\wp\wp-config.php(90): require_once(‘C:\\xampp\\htdocs…’) #11 C:\xampp\htdocs\wp\wp-load.php(37): require_once(‘C:\\xampp\\htdocs…’) #12 C:\xampp\htdocs\wp\wp-login.php(12): require(‘C:\\xampp\\htdocs…’) #13 {main} thrown in C:\xampp\htdocs\wp\wp-includes\widgets.php on line 1261