I have your staging site details, I meant the live?
Please do this on your staging:
Your staging site looks to be loading assets over https?
https://lojapj.staging.wpengine.com/
But in the WP settings it’s http: http://lojapj.staging.wpengine.com/wp-admin/options-general.php
Have you defined that in the wp-config? The perceived difference in domains maybe stopping Ajax from loading.
Also disable all plugins, leaving only WooCommerce and SF active.
Thanks.