With a empty album folder I get this log-file:
Array albums( 0 => , 1 => )
Array albums( 0 => , 1 => )
Array albums( 0 => , 1 => )
Array albums( 0 => , 1 => )
Array albums( 0 => , 1 => )
Array albums( 0 => , 1 => )
Array albums( 0 => , 1 => )
Array albums( 0 => , 1 => )
When I go to my zenphoto side I get this message:
Warning: require_once(/www/html/zenphoto/themes/) [function.require-once]: failed to open stream: Invalid argument in /www/html/zenphoto/zp-core/functions.php on line 1432
Fatal error: require_once() [function.require]: Failed opening required '/www/html/zenphoto/themes/' (include_path='.:/opt/php5//lib/php') in /www/html/zenphoto/zp-core/functions.php on line 1432
Only the adminpage works.
Can you look at the above file in an editor which will show you non-displaying characters? If we take the output literally, there are two "folders" in your albums directory with an empty string as the filename. That is unlikely both from an operating system standpoint.
I could possibly debug this with access to your site as you describe. Send email to stephen (at) sbillard (dot) org.
Here is an explanation: http://www.zenphoto.org/2008/08/zenphoto-glossary/