something's going wrong with the custom domain feature of digital ocean's CDN. it will serve images successfully if you query it directly, but not if queried via a CNAME (domain alias), which we use to point https://dostatic.cybre.space to digital ocean's endpoint
i'm going to file a ticket with digital ocean and change cybre.space's server configuration to use the CDN endpoint directly instead of via cname for the time being.
Cybrespace is an instance of Mastodon, a social network based on open web protocols and free, open-source software. It is decentralized like e-mail.