Cannot remove records from linked application

Cannot remove records from linked application

To help simplify the structure of my complicated application, I created a separate External Application to deal with a particular section.  In the Main Application I used Sections and Pages that contain the forms of the External Application.  They show up nicely, and I can input information.

I also constructed a page containing all the views related to the external application to allow users to edit their entries.

When I try to delete records from the External Application's database (via the Main Application), the screen just shows "Loading" and doesn't do anything else.  Records are not deleted.

Please help!  Here is a screen capture of the issue: