WordPress 4.3

Please help, the plugin just disappeared in 4.3.
even deactivating and reactivating does not help… 🙁

Hello,
function WP_Widget deprecead in wordpress4.3.
two possibility shorcode in widget text or
delete and change function and register widget :
<backticks>
/**
* Widget setup.
*/
public function __construct() {
parent::__construct(
‘tabbed-login-widget’,
__(‘Tabbed Login Widget’,’tabbed-login’),
array( ‘description’ => __( ‘Display Tabbed Login/Register/LostPassword form in sidebar.’,’tabbed-login’), )
);
}// end constructor

// Register the Widget
add_action( ‘widgets_init’,’tabbed_load_login_widget’,1 );

<backticks>
Work perfectly in my site.

Hello,

Read this article for modified Class in tabbed-login.php file :
https://codex.ww.wp.xz.cn/Widgets_API

class tabbed_login_Widget extends WP_Widget {

/**
* Widget setup.
*/
public function __construct() {
parent::__construct(
‘tabbed-login-widget’,
__(‘Tabbed Login Widget’,’tabbed-login’),
array(
‘description’ => __( ‘Display Tabbed Login/Register/LostPassword form in sidebar.’,’tabbed-login’),
‘classname’ => ‘tabbed-login-widget’
)
);
}// end constructor

// Register the Widget
add_action( ‘widgets_init’,’tabbed_load_login_widget’,1 );