When I check your link as of this moment, Imagevue is counting 0 images in that folder. See the related script that lists images in a folders:
http://www.heartlandowners.org/rally/pi ... hen,%20IN/
(view source)
The issue is related to one of the following:
#1 Try removing the comma (,) in the folder name. It might be disrupting the script.
#2 The folder is simply empty and has no images inside
#3 There is some server error related to configuration or even one or more of the files inside the folder.
I believe its #1 or #2