Installation : Stage 1: Upload the module zip file from the back-office Module & Services menu tab. Module Manager area using the upload button. After successful installation module menu link will appear in the still left menu or the very best menu within the back-office more space. Action 2: Install https://www.presta-addons-modules.com/es/free-modules/prestashop-preloader-page-loading-image-page-loading-animation-preloading-screen-loading-page.html