I work on a Laravel project and I tried to change the content of a div without refreshing the all page.

I’m making a query to a web service using jQuery AJAX, in my local its works good, but in production env has that error

I’m new to the web development world and the video I’m using currently is trying to build a restaurant website, now h wants to add a payment method which is paypal I’ve done everything he’s done and his own seem to work but mine doesn’t. In my console i get Uncaugh (in promise) TypeError: NetworkError when attempting to fetch resource and in my network tab it’s showing the route/undefined status code 400. Please anyone that can help me? here are my code