Is that message in the jobs log or in the sysout? If it's in the sysout then is there any more? I think we've come across this before and a stop/start of the agent normally resolves it.
Its in log & in sysout it giving error like @Failed to submit Job, found empty sysout.
Job submission aborted due to error in executing.
Job submission aborted due to error in Autoedit variables.