Problem with PHP PHP8.1.10

I have to swith to php8.1 because my provider does this.
Only when i switch to PHP8.1.10 i cant load my website.

I already removed all plugins and upgraded to wordpress version 6.0.2 (on my home server)
But nothing helped, seems to me that the error is coming out of the theme (other themes does work) problem seems to come from the file social-media-widget.php

Can someone help me to solve this problem ?

below is the error message

Fatal error: Uncaught ArgumentCountError: Too few arguments to function WP_Widget::__construct(), 0 passed in /var/www/html/wordpress/wp-includes/class-wp-widget-factory.php on line 61 and at least 2 expected in /var/www/html/wordpress/wp-includes/class-wp-widget.php:162 Stack trace:
#0 /var/www/html/wordpress/wp-includes/class-wp-widget-factory.php(61): WP_Widget->__construct()
#1 /var/www/html/wordpress/wp-includes/widgets.php(115): WP_Widget_Factory->register()
#2 /var/www/html/wordpress/wp-content/themes/sg-window/inc/social-media-widget.php(154): register_widget()
#3 /var/www/html/wordpress/wp-includes/class-wp-hook.php(307): sgwindow_register_social_widgets()
#4 /var/www/html/wordpress/wp-includes/class-wp-hook.php(331): WP_Hook->apply_filters()
#5 /var/www/html/wordpress/wp-includes/plugin.php(476): WP_Hook->do_action()
#6 /var/www/html/wordpress/wp-includes/widgets.php(1854): do_action()
#7 /var/www/html/wordpress/wp-includes/class-wp-hook.php(307): wp_widgets_init()
#8 /var/www/html/wordpress/wp-includes/class-wp-hook.php(331): WP_Hook->apply_filters()
#9 /var/www/html/wordpress/wp-includes/plugin.php(476): WP_Hook->do_action()
#10 /var/www/html/wordpress/wp-settings.php(598): do_action()
#11 /var/www/html/wordpress/wp-config.php(96): require_once(‘…’)
#12 /var/www/html/wordpress/wp-load.php(50): require_once(‘…’)
#13 /var/www/html/wordpress/wp-blog-header.php(13): require_once(‘…’)
#14 /var/www/html/wordpress/index.php(17): require(‘…’)
#15 {main} thrown in /var/www/html/wordpress/wp-includes/class-wp-widget.php on line 162
There has been a critical error on this website.`