SharePoint WebPart cannot find list on Sub Site - Item does not exist. It may have been deleted by another user

I wrote a Web Part that I dropped on the root site page. That Web Part adds a list. This works great on the main page. That Web Part uses a custom list. Both the list and the Web Part were developed in VS 2010.

Issues/Steps - Sub Site

1. I then activate the custom list feature on the sub site and that list shows up.


2. I add my Web Part to the page.



3. I get the error:

   
   
   

   
   

   Item does not exist. It may have been deleted by another user

   
   

This list is there on the sub-site. I do not get why the Web Part cannot find the list? It works well on the home page, the root site, but not on a sub site.

---