Stupid mistake, I commented this out by mistake in wp-includes/widgets.php line 323:
function register($widget_class) {
// $this->widgets[$widget_class] = & new $widget_class();
}
Stupid mistake, I commented this out by mistake in wp-includes/widgets.php line 323:
function register($widget_class) {
// $this->widgets[$widget_class] = & new $widget_class();
}