Why is my cart button blank when empty and how to redirect it to a product page?

As shown in the above picture, when the cart in my shop is empty, the button displays no text. I tried changing its colors, as well as the text color, though it did not help. How can I resolve this?
My second question is, how can I have the button redirect to a product page directly rather than a collection page? The Theme settings only allow me to select a collection, not a page (like Catalog) or a Product page. The Original Theme is Sense. Please help, thank you.

Hi! Did you ever get this solved? I am having the same issue.