Posted in Common Support Issues
If you are using version 2.5/2.6 of the gallery, and your webserver just upgraded to PHP 5.3, you will get this error. This bug has been fixed in versions released after 2.6.
To fix this error, please upgrade to 2.7, or to manually fix it, please edit the file administrator/components/com_igallery/lib/wideimage/WideImage.php.
Cut line 50:
class WideImage_Exception extends RuntimeException {}
Then paste it to line 33, so it is directly above this line:
require_once WideImage::path() . 'Image.php';
