Could not save comment
The server accepted the comment shape, then failed while writing it (Prisma/transaction error) — 500 with this message on file, folder, or news comment creates.
Why this happens
DB connectivity, constraint, or race on counters after validation already passed. Empty/length/captcha failures use other strings first.
Diagnose and fix
1. Check app/DB logs for the comments create transaction.
2. Confirm DB health and migrations; retry once.
3. Comments feature toggles must still be on (toggle.efc, folder/news settings).
4. If every post fails, treat as an ops/DB issue, not a bad visitor comment.