problemOf

The problem of result, a command that did not succeed.

The problem of failure, answered as it is wherever it is thrown (an application route, a service route relaying another service's answer): its status, its code and its result, and what a retry may do with its Retry-After, in whole seconds rounded up, as the failure says, not as the catalog would for its code, which may not even know it. Its title is the code's in context.

A problem with code before the command has a ref.