Hi there!
Thanks for reaching out.
There is an .htaccess authentication step that I need to pass, but I don't have the credentials for that screen. As a result, I couldn't access your Joomla administrator area.
Also, are you currently using a predefined header? If so, the more convenient approach would be to create a custom header with your desired layout, pattern, and width instead of using a module for the logo.
You can find the related documentation for Helix Ultimate here:
Helix Ultimate – Custom Header
Hope this helps!
Best regards,