White Boxes Appearing At Corner Of Browser


White Boxes Appearing At Bottom Right Corner Of The Browser
**I don’t know. They seem to appear randomly. In the top left corner of the box is the Brave lion head logo. There is then a message in Spanish (I am in Spain. I know a little Spanish), but my settings are set to English. I clicked on the box & a window opened advertising a strange tall box for sale. How can I prevent these boxes from appearing?

Thank you.**

(1. I don’t know what I’m supposed to put here.
2. This template is confusing.
3. It’s too restrictive.)

Expected result: To prevent the boxes from appearing.

Brave Version: Version 1.13.82 Chromium: 85.0.4183.83 (Official Build) (64-bit)

Additional Information: None.