Not working with NS Cloner plugin since 12.4.2

This is happening since 12.4.2 release, when i try to clone a multisite using NS Cloner this error occurs:

Fatal error: Uncaught Error: Using $this when not in object context in /var/www/*****/www/wp-content/plugins/wp-reviews-plugin-for-google/include/schema.php:5 Stack trace: #0

Looking at schema.php you call the instance:

<?php
defined('ABSPATH') or die('No script kiddies please!');
$ti_db_schema = [
'reviews' => "
CREATE TABLE ". $this->get_tablename('reviews') ." (
 id TINYINT(1) NOT NULL AUTO_INCREMENT,
 hidden TINYINT(1) NOT NULL DEFAULT 0,
 user VARCHAR(255) CHARACTER SET utf8 COLLATE utf8_general_ci,
 user_photo TEXT,
 text TEXT CHARACTER SET utf8mb4 COLLATE utf8mb4_general_ci,
 rating DECIMAL(3,1),
 highlight VARCHAR(11),
 date DATE,
 reviewId TEXT,
 reply TEXT CHARACTER SET utf8mb4 COLLATE utf8mb4_general_ci,
 PRIMARY KEY  (id)
)
"
];
?>

But inside your plugin main file you’re including outside a class causing this error:

include $pluginManagerInstance->get_plugin_dir() . 'include' . DIRECTORY_SEPARATOR . 'schema.php';

I think this is a bug.