[Theme Horse Support Team]

Hi Sebastian,

You may download the fresh theme from your login account. You will have a zip file there. Go to your dashboard -> appearance -> themes and delete the old version of interface pro file and install that zip file. Before deleting it first make a backup of it from ftp. This theme file is loaded inside public_html-> wp-content->themes->interface-pro. If you are having issue while installing then you can simply install it from ftp. Unzip the file (interface pro) and upload inside public_html-> wp-content->themes

If you have any issue then let us know.

Thank you!