[Plugin: Advanced Twitter Profile Widget] PHP Warnings with WP 3.1

Update the function Twitter_init() in advanced-twitter-profile-widget.php to:

function Twitter_init(){
	wp_register_sidebar_widget( 'Twitter', __('Twitter'), 'widget_Twitter');
	wp_register_widget_control( 'Twitter', 'Twitter_control', 250, 200 );
}

this get complete compatibility

https://www.ads-software.com/extend/plugins/advanced-twitter-profile-widget/