Still cannot get it to work with a shortcode

Hi there
Could you possibly let me know what I'm doing wrong here. I'm trying to wrap a button in the password protect shortcode but getting no joy:

[protect password="test"]

[st_button text_color="#ffffff" link="" background="#3a87e6" size="btn" target="_self"]Download[/st_button]


Here's a test page to show the result:

The button below the map.

Thanks in advance for any help you can give me