Hello Henri,

thanks for reaching out to us.

In order to get rid of the banner, you need to use the Admin CSS plugin. It works well with WordPress single install and WordPress multi-sites.

Please, see more information about the Admin CSS plugin on this link - Admin CSS

You can use this CSS code in order to hide the banner.

#am-dashboard .am-amelia-banner {
display: none;
}

If you have any other questions, please open a new ticket and we will gladly help you there.