gallery error

[robpetrosino]

Hello, I am getting this error with a image gallery

Error: error building site: "/Users/rp3650/Desktop/starter-hugo-academic-main/content/panini/index.md:20:1": failed to render shortcode "gallery": failed to process shortcode: "/Users/rp3650/Library/Caches/hugo_cache/modules/filecache/modules/pkg/mod/github.com/wowchemy/wowchemy-hugo-themes/modules/wowchemy/[email protected]/layouts/shortcodes/gallery.html:34:17": execute of template failed: template: shortcodes/gallery.html:34:17: executing "shortcodes/gallery.html" at <.Fit>: error calling Fit: this method is only available for image resources

I tried to use the demo album of the template, and it works, so it's a problem related to the images themselves. I have tried to change the format (jpeg to jpg/png) and reduce the size (< 200 KB), but I still get the same error. Does anyone know what could be the source of the error?

Thanks!