Deprecated functions

I’ve got those errors while using your plugin:

Notice: register_sidebar_widget is <strong>deprecated</strong> since version 2.8! Use wp_register_sidebar_widget() instead. in /var/www/1DGVB75G/public_html/wp/wp-includes/functions.php on line 3378

Notice: register_widget_control is <strong>deprecated</strong> since version 2.8! Use wp_register_widget_control() instead. in /var/www/1DGVB75G/public_html/wp/wp-includes/functions.php on line 3378

Notice: register_sidebar_widget is <strong>deprecated</strong> since version 2.8! Use wp_register_sidebar_widget() instead. in /var/www/1DGVB75G/public_html/wp/wp-includes/functions.php on line 3378

Notice: register_widget_control is <strong>deprecated</strong> since version 2.8! Use wp_register_widget_control() instead. in /var/www/1DGVB75G/public_html/wp/wp-includes/functions.php on line 3378

Notice: register_sidebar_widget is <strong>deprecated</strong> since version 2.8! Use wp_register_sidebar_widget() instead. in /var/www/1DGVB75G/public_html/wp/wp-includes/functions.php on line 3378

Notice: register_widget_control is <strong>deprecated</strong> since version 2.8! Use wp_register_widget_control() instead. in /var/www/1DGVB75G/public_html/wp/wp-includes/functions.php on line 3378

Notice: load_plugin_textdomain was called with an argument that is <strong>deprecated</strong> since version 2.7 with no alternative available. in /var/www/1DGVB75G/public_html/wp/wp-includes/functions.php on line 3497

Notice: Undefined index: diamond_blogs in /var/www/1DGVB75G/public_html/wp-content/plugins/diamond-multisite-widgets/diamond-broadcast-posts.php on line 42

Could you please update your plugin?

https://www.ads-software.com/plugins/diamond-multisite-widgets/