magento 2 – class error on backend after remover facebook-for-magento

I’m Newbie, after remove facebook for magento now encounter error. magento backend catalog-products unable to load.

There has been an error processing your request
Class FacebookBusinessExtensionModelConfigSourceProductGoogleProductCategory does not exist

already clear cache files using -> php bin/magento cache:enable,

can someone guide me how to solve this. exactly which file to be edit and how.