Errors
SESSION_NOT_FOUND
No durable Agent Session exists for the key in the active Runtime namespace.
What failed
getSession(target, key) did not find a Session for that key in the active
Runtime namespace.
Why
getSession() never creates. Retrieval requires a Session that was previously
created with session() against the same store and namespace.
What still works
session(target, { key }) can create or reopen when creation is intended.
Other existing Sessions remain available.
Fix
Call session(target, { key }) to create the Session, or verify the Runtime
namespace, store, and key match the process that created it.