I'm looking for a single word that means an issue cannot be resolved by waiting and trying again. Essentially the opposite of intermittent or temporary.
I would previously have used systemic or systematic, but checking the dictionary definitions of these having been challenged on them neither seems to quite fit.
Update to answer questions in the comments:
The word I'm looking for should reflect a problem that will persist until external action is taken, but is not necessarily urgent.
To use it in a sentence:
"Your request has encountered a {Special Word} problem, and will not be retried."
The use I'll be putting it to is more in the nature of a column header though. On the one hand there are temporary problems that might go away if we try again shortly, on the other hand are these problems.