Explanation: This error is a timing problem. It can happen if the job was added to a multiplexed group when bpbrm terminates due to an error condition. Note that the resource broker (nbrb) does the allocation of a multiplexed group, whereas the job manager (nbjm) starts and monitors the bpbrm process.
Recommended Action: If the failed job is scheduled and the retry count allows it, nbpem submits the job again. If the failed job was initiated manually, submit it again.