Issues

ISSUE 1:

ERROR: cannot call methods on price Box prior to initialization; attempted to call method ‘option’

FIX:

Firstly, you can initialize the function named as (price Box) and then call the function (price Box).

CODE:

Navigate /var/www/html/magento/pub/static/frontend/Homnibus/argento-flat-custom/fr_FR/Magento_ConfigurableProduct/js/configurable.js line 83 In configurable.js, Replace the below code under the _initializeOptions: function () {

    //priceBoxOptions = $(this.options.priceHolderSelector).priceBox('option').priceConfig || null;
    priceBoxOptions = $(this.options.priceHolderSelector).priceBox().priceBox('option', 'openOnFocus', true).priceConfig || null;

ISSUE 2:

Always redirect to cart

    php bin/magento config:show checkout/cart/redirect_to_cart