call code from the site to my mobile number.

Good day friends. sorry for my average english

A small question.

I have two websites, both based on PrestaShop.

I set the html call code from the site to my mobile number.

On the PrestaShop 1.7.0.5 site, this code does not work.

On the PrestaShop 1.7.8.2 site, the code works.

If you can friends tell me where and what to fix for Presta 1.7.0.5?

I will be very grateful

Call code

<div class=\"telefoni_2\">

<a class=\"a_tel_2\" href=\"tel:+995598423011\">

<img src=\"../shablon/phone2.gif\" width=\"50\" align=\"middle\"/>

</a>

</div>