Hello
We are web developers and specialist in PHP,javascript,jquery,html,css and prestashop cms , we have developed some module that are released in prestashop market place (you can see theme in my profile).
We have 3 years experience in developing and customizing and fixing themes and modules of prestashop and we can easily solve your problems .
We need some extra information about your shop to solve this problem.
I'm looking forward to hear from you