Tracking Website Link Not Working Correctly

I have had the tracking details button on the Shipment Entry and Tracker working for years. All of a sudden it has decided to stop working! I have the tracking website URL and placeholder set up correctly, like I said its been working for years. Now when you try to open the tracking it tells you “A Tracking website URL has not been defined for this ship via.” Any ideas on what could be going wrong here? This will not work for any ship via. I have tried deleting the URL info, changing the placeholder value, even creating a new ship via.