I installed the Data Quality Anaylsis Dashboards App, but when click on "Check Challenge" button I got this error below:

Challenge Not yet complete... here's what's wrong:
 Could not find all of the components in the Data Quality Analysis Dashboards App. Please ensure that you have installed the app.

Please help.
Cindy

Challenge Description:

• Upload a specified zip file as a static resource. The zip will have directories with images and you have to display a specific image on a Visualforce page.The page must be named 'ShowImage'.
• This file must be uploaded as a Static Resource named 'vfimagetest'.
• The page must have a Visualforce apex:image tag that displays the 'kitten1.jpg' image from the 'cats' directory of the static resource.

Screenshot of Visualforce Page:

Screenshot of Resource Page:


Screenshot of page preview:


Exact text of error:
Challenge not yet complete... here's what's wrong: 
The page does not include a reference to the specified image

Can't figure out whats wrong, everything looks like its working perfectly and I used the examples in the module as a base for the code.