ORA-27492: unable to run job scheduler

My Oracle application have stopped transferring data to another table.
After doing a bit of troubleshooting,I have narrowed the issue down to the scheduled job PERSON.FIG_TIME_DAILY
The procedure that is called by this job works fine when I run in manually
However, this scheduled job hasn't successfully run in over a day
I tried dropping the job entirely and rebuilding it using the DDL from the same job in my testing environment, but that didn't seem to work.

Unable to run job "PERSON.FIG_TIME_DAILY" scheduler unavailable

From the online research I've done, most users have resolved this problem with some variation of the command

SQL>show parameter  job_queue_processes;
the value was default set to 1000

Than i Google out and run the following

SQL>select attribute_name,  value
from dba_scheduler_global_attribute
where attribute_name = 'SCHEDULER_DISABLED';

ATTRIBUTE_NAME     VALUE
------------------ -----
SCHEDULER_DISABLED TRUE

-- Attribute vanishes when set to false (run as sysdba)

SQL>exec dbms_scheduler.set_scheduler_attribute ( 'SCHEDULER_DISABLED', 'FALSE' );

After this Scheduler started Working