Descriptions Don't Show in Products

I see the description on your product pages too.
The problem is that it has the same color as the background so that's why you think it's not displaying.
I can see that you edited the frontend_default.css file and have that:
.hikashop_product_bottom_part{
clear:both;
width:100%;
color: #4B2879;
}
.hikashop_product_bottom_part *{
color: #4B2879;
}

So you set the product bottom area to display text with a violet color. However, the background there is also violet.

If you change this CSS to white, it will display properly:
.hikashop_product_bottom_part{
clear:both;
width:100%;
color: #FFFFFF;
}
.hikashop_product_bottom_part *{
color: #FFFFFF;
}

Also, instead of editing directly the file, you should edit it via the Display tab of the configuration of HikaShop. That way, you won't loose your changes when you update HikaShop.

There is the description. See on that product page for example:
www.drippyicing.com/shop/product/13-wedd...12/related_product-4

For the product www.drippyicing.com/shop/product/4-sugar...2/related_product-13 you don't see it apparently because you add characteristics to the product but the data in the database is not consistent. Just follow this procedure for that product and it should work after that:
www.hikashop.com/en/support/documentatio...html#characteristics