Fix Django-Facebook Post Link Issue

I'm seeking a developer to fix an issue with a Django program that generates Facebook posts linking to products in my Prestashop 1.6.1.4 online store. Currently, the links lead to non-existent pages.

Key Requirements:
- Identify and rectify the cause of broken links (likely due to changes in product URLs)
- Ensure that generated links are accurate and functional
- Maintain the integrity of the existing Django script

Ideal Skills & Experience:
- Proficiency in Django and Prestashop
- Strong understanding of URL structures and script debugging
- Experience in maintaining legacy CMS platforms

Please provide relevant work samples and a brief project plan.