Dlvr.it Customer Service Issues

This week, when we post on LinkedIn using Dlvr.it, the story link appears but not the image. We are unsure why this is happening. Furthermore, our posts are not being published on Twitter or Instagram through Dlvr.it. Even though Dlvr.it indicates that the post was successful, nothing is appearing on these two platforms when we check. The only social platform that is working correctly with Dlvr.it is Poultry Times' Facebook page.