custom auto notify job failed

Document ID : KB000113533
Last Modified Date : 21/09/2018
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The custom auto notify job that is scheduled to run at 7:00 AM EST error out.  It appears that the first 2 of the 12 queries where successful and 3 thru 12 failed.  All of these had the error “Error: org.apache.commons.jelly.JellyTagException: null:153:70: <core:arg> A int instance cannot be null.
It appears that this is caused by database contention and re-scheduling at the earlier time helped with the issue.