Cross Section Labeler

I am trying to use the GPK Corridor Modeler's Cross Section Labeler and it is giving me issues. I haven't used it in about 6 months, during which time I have made updates to Windows, MicroStation, and Geopak so it is a little tough for me to figure out where the issue is. The image below is a capture what the error that I am getting when I click the Cross Section Labeler button. The error will pop-up repeatedly if I click the button once.

 

Any ideas what is causing this?

 

MS - v8.11.09.397, Geopak - v8.11.07.536, Windows 7 SP1