Please see which topic best describes the issue you are encountering with while importing your PrestaShop shop to Facebook
1. StoreYa's module was not installed correctly.
In order to ensure that you have the StoreYa module installed correctly, you need to be able access the following URL:
1.1. If the module was installed correctly - you will be getting a blank page.
1.3. In case you are getting an error, please contact your webmaster or use our CSV solution (here is our CSV to Facebook guide)
2. Wrong API Key. Verify Key and Installation.
Once StoreYa module is installed, it generates a unique API Key to allow secure access to your inventory.
The correct API Key contains 30 characters and consists of uppercase letters and numbers.
3. Missing permissions for StoreYa module
4. An error occurred while importing
Please contact us specifying your web store's URL