Cyber Search Plugin

The IT Rockstars Cyber Search Tool ® is a wordpress plugin that allows you to capture email addresses from users that visit your website and use the HaveIBeenPawned search facility.
See Full explination and overview in the following video:
Install Instructions
1) Upload Plugin
2) Activate
3) Navigate to Settings > Cyber Search Settings
4) Enter API Key:
9432730d12de4afda4d418558583433b
5) Use the following shortcode in any page/post of your website:

6) You can customise the text that the search window displays withing Cyber Search Settings
Putting this on my site… (I use DIVI, from Elegant Themes) – it does not allow me to have a header or other content other than the ‘have I been pwned?’ section.
Is that normal?