One of two things happening:
As careful as you may have been in putting your images in the correct folder…the error code above your gallery is hinting that you may have made a mistake. OR…the template settings are looking for the images in a bad address.
For instance, the first line of the error code I’m seeing above your gallery is:
Warning: getimagesize(/home/halostro/public_html/artsgents.net/images/rsgallery/display/PICT0035_resize.jpg
What this means, in VERY basic terms, is that Joomla is looking for an image called “PICT0035_resize.jpg” on your server.
I’ve tried every combination of the above path and cannot find that image…
http://artsgents.net/images/rsgallery/display/PICT0035_resize.jpg
etc.
So I’m thinking the file is either NOT there…or it’s NOT in a directory with a path: /home/halostro/public_html/artsgents.net/images/rsgallery/display
My guess is that the image folder path in your RCGallery is not set correctly.
Good luck with your search.
John.