Oracle Message ORA-07265 - sppst: semop error, unable to increment semaphore.

ERRORsppst: semop error, unable to increment semaphore.
CAUSESemop system call returned an error. Semaphore set may not exist.
ACTIONCheck errno. Semaphore ID is returned in sercose[0]. Check semaphore set existence. A possible cause for this error is that a shutdown abort was done while this process was running.