Catalog Synchronization in a business process action is resulting in error "error in worker SyncWorker"

I am trying to synchronize the catalog using CatalogVersionSyncJob from one of the actions in a business process. While doing this, I am getting an error "error in worker SyncWorker : Entity not found ( pk = 8796617343477 name = 'de.hybris.platform.persistence.processing_CronJob' type code = '501' db table = 'cronjobs')" in the log and none of the items are getting synchronized. Can someone tell me what could be the root cause for this error.