In v3.0 we have split the "Add a new address" image into the two elements: a background image and a text.

It allows translating this button easily without changing a CSS code and creating a custom image. We need to override only one text label.

However, it caused an issue: if somebody has already customized this button and added a custom image with a translated text, Ecwid will show two texts: a text on the image and an actual one (from Ecwid).

To fix this issue, please apply this CSS code:

div.ecwid-AddressBook-addButton div {

  display: none;

}