Problem in a free theme on mobile

[askanaan]

Hello,

 

I am new to Prestashop and building my first ever shop!

 

I am trying to test a free theme I found on the following link :

 

http://demo.omegatheme.com/prestashop/ot_jewelry/index.php?id_product=2&controller=product

 

On mobile, when I clicked on an item to see its details, under the item description , the text goes beyond the visible area as the attached photo shows.

 

1-Is this an easy fix that I can do my self given that I have little knowledge in PHP, but I have other programming knowledge and fair understanding of HTML, Javascript, Java(irrelevant ) 

 

2-Would it be better for me to purchase a paid theme? 

 

 

Any advises is highly appreciated !

 

Many Thanks