Hello guija75,
Thank you so much for using our theme Education Base. It may cause due to the below problems:
1. Is your site already have the data ?
2. Is your internet is too slow?
3. Have you downloaded the demo from our documentation page and upload that dummy data from Acme Demo Setup?
4. Is Education Base theme is activated on your Appearance > Themes
Please let us know the answers. We will do our best to help you for importing the dummy data.
Regards
Acme Supports