Add to cart buttons don't work when I upload the ELLA theme

I bought the ELLA theme and have configured and tested it in a test store, and everything works fine even without the need to configure it, but when I upload it to the active store to replace the free SUPPLY theme that I have installed, it stops working as it does towards the test store and loses some functionality. The most important is to be able to add to the cart since the buttons do not do anything, only the dynamic buy button works now that the cart is skipped.
I checked the flow of the code in the browser console and found an error message that repeats a lot, as if I did not receive a response from the server. I attach the screenshot.

Can you help me

Hi there,
Jack from OpenThinking here!

That’s most likely caused by some app. I’d suggest you to re-install all your Shopify apps.

let me know if this works for your. If yes; accept my answer and give me thumbs up! Thank you.

Hello, thanks for answering. I also thought that it could be due to a conflict with an application so I uninstalled all the applications to try again and the problem persists.