Prestashop and Shipping Easy callback does not work 404 error

From the very start I have had an issue with Prestshop not receiving shipping updates from Shipping Easy, going the other way works fine they do receive all my orders. Its becoming a huge hassle having to manually manage shipping status and tracking number updates from shipping easy to prestashop, I worked with Shipping Easy as far as they would go with it, we uninstalled the module and reinstalled, tinkered with this and that but nothing has fixed this issue. I am posting here in hopes someone has the answer and may have had this issue in the past too. Prestashop is fully current, regardless I have been on many iterations of Prestashop, Shipping Easy was my first and only shipping solution so another solution did not cause a issue, at least not a shipping integration app . I would be very thankful if someone can help my next stop if this fails will be Prestashop support and pony up plenty of dough for their help. Thank you all in advance. My website is ... if you need to see a page or anything. Thank you.