errore widget non funziona nessun tema

salve, ho appena installato wordpress su xampp (entrambi all’ ultima versione) e ho creato un template con [ Rimosso perchè prodotto commerciale] e mi da quest’ errore:

Fatal error: Uncaught ArgumentCountError: Too few arguments to function WP_Widget::__construct(), 0 passed in C:\xampp\htdocs\wp-includes\class-wp-widget-factory.php on line 61 and at least 2 expected in C:\xampp\htdocs\wp-includes\class-wp-widget.php:162 Stack trace: #0 C:\xampp\htdocs\wp-includes\class-wp-widget-factory.php(61): WP_Widget->__construct() #1 C:\xampp\htdocs\wp-includes\widgets.php(115): WP_Widget_Factory->register('VMenuWidget') #2 C:\xampp\htdocs\wp-content\themes\tuttotechit\library\widgets.php(255): register_widget('VMenuWidget') #3 C:\xampp\htdocs\wp-includes\class-wp-hook.php(307): artWidgetsInit('') #4 C:\xampp\htdocs\wp-includes\class-wp-hook.php(331): WP_Hook->apply_filters('', Array) #5 C:\xampp\htdocs\wp-includes\plugin.php(474): WP_Hook->do_action(Array) #6 C:\xampp\htdocs\wp-includes\widgets.php(1854): do_action('widgets_init') #7 C:\xampp\htdocs\wp-includes\class-wp-hook.php(307): wp_widgets_init('') #8 C:\xampp\htdocs\wp-includes\class-wp-hook.php(331): WP_Hook->apply_filters(NULL, Array) #9 C:\xampp\htdocs\wp-includes\plugin.php(474): WP_Hook->do_action(Array) #10 C:\xampp\htdocs\wp-settings.php(587): do_action('init') #11 C:\xampp\htdocs\wp-config.php(90): require_once('C:\\xampp\\htdocs...') #12 C:\xampp\htdocs\wp-load.php(50): require_once('C:\\xampp\\htdocs...') #13 C:\xampp\htdocs\wp-blog-header.php(13): require_once('C:\\xampp\\htdocs...') #14 C:\xampp\htdocs\index.php(17): require('C:\\xampp\\htdocs...') #15 {main} thrown in C:\xampp\htdocs\wp-includes\class-wp-widget.php on line 162

come posso aggiustarlo? ho cercato su google e sul forum ma in vano.