The FIRST solution is to run EDGEMENU -> Schedule -> Acknowledge All and check for jobs waiting for operator input. Instructions are clear on what the User must do.
If no solution is offered here, the SECOND choice is to run EDGEMENU -> Schedule -> Browse Running Jobs. This will give you a chance to see the status of a job and to terminate the job if anything seems amiss.
The THIRD choice is for the operator to run a process status (ps) from the command line, then kill any running BackupEDGE process (except edge.websrv if running). This should remove the lockfile (unless kill -9 is used).
When all this has been done, check for the existence of, and remove the .schedule.lck. file in the listing directory of the job. The default schedule is called .simple_job., so the correct directory is ./usr/lib/edge/lists/simple_job. If .schedule.lck. still exists in the listing directory of your job , remove it.
Lockfiles are automatically removed during a system reboot /restart.
In addition, a system reboot may also be in order to clear any hung processes from the previous job.