I just got the same error myself, where increasing numprocs didn't work. It turned out that the task wasn't actually running out of processes or threads at all; rather, it was running out of memory while creating new worker threads. So the error message was rather a red herring. Just increasing the memory limit solved it.
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Problem with Jobe Server
Acest forum limitează numărul de intervenţii pe care le puteţi realiza într-un interval de timp - în prezent această limitare este de 5 intervenţii în interval de 1 zi