At the top of Magento admin page, below are the messages displayed. I'm not sure what these mean and how to fix them all. Please help me understand this.
One or more of your dotdigital cron tasks have errors: ddg_automation_customer_subscriber_guest_sync, ddg_automation_status, ddg_automation_reviews_and_wishlist, ddg_automation_catalog_sync, ddg_automation_importer, ddg_automation_campaign, ddg_automation_order_sync, ddg_automation_monitor, ddg_automation_abandonedcarts. Please go to Cron Tasks to review.