Add to cart button ‑ FoxCart

Works exactly as promised. Provides a nice visual for customers to make certain their orders are getting sent to the cart.

A sido buena, pero desde ayer dejo de funcionar en mi pagina, ya no aparece el circulo para agregar a su carrito. Mande un correo pero no me han respondido. Quiero solucionar esto lo antes posible, es muy buena la app y me gusta mucho. pero necesito solución.
Alguien podria contactarse conmigo porfavor que me ayuda a solucionar porque dejo de funcionar?

I added a bulk discount, but it can only be displayed on the PC side, not on the mobile side, and there is no manual customer service in the background, so I can’t find a way to solve the problem.

UPDATE : Customer support was fast, they are working on it.

I installed the app, and it says : "You are not logged in. Please access this page from your Shopify admin." And of course, I can't save anything.
I AM LOGGED IN, as I click on it as admin, on the APPS tab, IN MY SHOPIFY STORE.

good price for good app, recommend to other customers
only thing is confuse how to setup the design and things