Hi @mstilp
Thanks for reaching out.
The Post Loop widget is reliant on the theme providing the necessary template file/s. It looks for naming patters:
content-*
*-content
loop-*
*-loop
* is any name. The theme you’re using unfortunately doesn’t have a blog loop file that uses any of the above naming formats. This is perhaps something you could ask the theme developer to help out with.
The SiteOrigin Widgets Bundle has a Carousel widget. That’ll display your posts in carousel format. If you’re interested in that, check out the Bundle here: https://ww.wp.xz.cn/plugins/so-widgets-bundle/.