Small bug in productcomments module v4.0.1

[webprog]

Found small bug in productcomments module v4.0.1, when visit main page of the shop. See attempt of ajax call to controller of the module. Attempts appears randomly.

productcomments/CommentGrade?id_product=id

500 (Internal Server Error)

 

 

[webprog]

I found the solution to add this code to the modules\productcomments\controllers\front\CommentGrade.php

    public function initContent(){
        if ($this->context->controller->php_self != 'product') {
            return;
        }
        parent::initContent();
    }

It works.