Prestashop Facebook Feed app

I am looking for a freelancer to let work a app we use for Facebook Feed app that will display products on my Facebook page.

APPS
Facebook Products Feed for Dynamic Product Ads
AND
Pixel Plus for Facebook: Events + Conversions API + Pixel Catalogue

in the moment the problems are
1 App the feed who is generate is not ok for facebook
2 app the products via pixel etc are not working fine and shows products price without tax and only 2 products are in shop in facebook


Requirements:
- Experience in developing Facebook apps and integrating them with e-commerce platforms, specifically Prestashop
- Familiarity with the Facebook Graph API and its capabilities for displaying product information
- Ability to customize the app's design and layout to match my brand's aesthetics
- Knowledge of best practices for optimizing social media engagement and driving conversions through Facebook ads

The ideal freelancer will have:
- Proven experience in developing similar Facebook apps for e-commerce businesses
- Strong understanding of Prestashop and its capabilities for integrating with third-party platforms
- A creative mindset to come up with innovative ideas for showcasing product information on the Facebook Feed app

max budget 50 cad !