Qlikview task is failed with the below error and warning. but its reloading manually.
(2017-10-28 23:37:45) Error: Could not close the SourceDocument. Exception=The currently executing operation was aborted.
(2017-10-28 23:37:45) Warning: The QlikView Engine isn't responding to close command, it will be killed (Please ignore logged errors about the kill).
Can you attach the full task log & document log? Based on the very limited snippet you provided, it seems that the QDS wasn't able to close the source QVW. So, what's going on in the reload script at the time this occurs? The document log should provide you this information.
Hope this helps,