Hello Lars Flindt,
Thank you so much for your question regarding our theme. Please follow the below steps:
1. Create post and set the post on the category.
2. Create a page. (Example: Blog)
3. Go to Setting > Reading and select the A Static Page and select the page Blog on Blog page section. https://doc.acmethemes.com/acmeblog/#SettingupFrontpageandBlog(Posts)page
4. If you view that Blog page, all the post will displayed on that page.
Please try once at let us know if it worked or not.
Regards,
Acme Supports