Topic: Updating simpleviewer gallery

I run simpleviewer gallery on the iFrame of my webpage. The entire simpleviewer folder was uploaded to my server.
The iFrame path is set to src="SimpleViewer/index.html" and it works fine.

However, when I upload the newly generated folder named 'SimpleViewerPs' to my server and change the path to src="SimpleViewerPs/index.html" it doesn't open the gallery.

Both of the folders, 'SimpleViewer' and 'SimpleViewerPs' are on my server at the present.

I would appreciate if you help me to solve the problem.