Hey Denis!
I’ve re-tested the plugin in all widget areas on a fresh Fuji version 2.2 installation, and it works fine. I couldn’t find the cause of it not working on your website by looking into the admin back-end, so here’s what I propose to do: first, please remove the existing widget from the header widget area; then try reinstalling the plugin by downloading this archive, unzipping it, and uploading the folder found inside into the following directory: /wp-content/themes/Fuji/includes/. After re-uploading the files, refresh the website and try adding the widget anew.
If the above steps do not help, I wil need access to the plugin’s files, which means that I’ll need to ask you for your ftp login and password (you can send them again to support@satoristudio.net) – and I’ll do my best to solve it as quickly as possible.
Sincerely,
Andrew | Satori Studio