not_found
404 · Not foundWhat happened
There is nothing at this address. It may never have existed, or it may be something you cannot see — a session awaiting review looks identical to one that is not there.
What to do
Check the address. A session you submitted is not public until it is approved, and its page is a 404 to everybody including you until then.
Is retrying worth it
No. Repeating the identical request will fail identically. Something has to change first, and the line above says what.
Reading the response
Errors are RFC 9457 problem details. Switch on code, which is stable, and never on title, which is written for a person and may be reworded or translated. detail carries the specifics of this occurrence, and meta carries whatever the client needs to render the right state instead of a dead end.
Every response also carries an X-Request-Id header. Quote it if you report something — it is what lets us find the exact request.