Rahul,

From the provided logging it's clear that in your processing you are creating objects and are not commiting these objects.

These objects will get a status of autcommitted and will be removed when the session ends.

To fix this have a close look at your processing, from a scheduled event it seems, and look for uncommitted objects that are created and associated to other objects that you are committing (the others). Then make sure to explicitly commit the created objects.