bug in class-wp-side-notice.php

In the class-wp-side-notice.php lines
add_action( ‘admin_enqueue_scripts’, `WP_Side_Notice::add_stylesheets_and_javascript() );
add_action( ‘admin_init’, WP_Side_Notice::process_response() );`
must be replaced with

add_action( 'admin_enqueue_scripts', array($this, 'add_stylesheets_and_javascript' ));
add_action( 'admin_init',  array($this, 'process_response' ));

Plugin Protector 1.3

https://wordpress.org/plugins/plugin-protector/