Call to undefined method Tools::purifyHTML()

[nelsonnn97]

Hi everyone, i would really appreciate if someone helped me here. I'm getting an error on a themes module (sns trella).

Fatal error: Call to undefined method Tools::purifyHTML() in /home/artebolos/public_html/modules/snsproducttabsslider1/snsproducttabsslider1.php on line 540
[PrestaShop] Fatal error in module snsproducttabsslider1:
Call to undefined method Tools::purifyHTML()

This is the code from the snsproducttabsslider1.php on line 540

if ($html)
            foreach ($values as $lang => $value)
                $values[$lang] = Tools::purifyHTML($value);

 

This is the error, and i do not know why i am getting it.

Thanks in advance.