If you are running a PrestaShop 8.1.x version and you are facing a repricing issue with Pricefy, the error is probably this https://github.com/PrestaShop/PrestaShop/issues/34199

Prestashop didn't solve it yet so the only way to fix it is to apply this patch described here https://github.com/PrestaShop/PrestaShop/issues/34199#issuecomment-1782910148