Perhaps the admin of your web server made a change in the configuration of PHP4.
You should check these items :
- GD or ImageMagick are setup correctly for your site. - permissions are correct on the directory where eZ Publish write the thumbnail files.
Just in addition to Damien's suggestions: any permission problems are usually well seen with the help of debug output, therefore easy to diagnose.
This is what often happens when we move a site from a shared hosting with root privileges (permissions don't matter) to a local development LAMP machine. Solution is to make sure eZ can read/write all the desired locations.
Thank you both for your help. No changes have been made to the server as far as I know since I am the (poor) webmaster. I will try your suggestions and keep you updated.
I encountered this issue a few days ago while updating my website but it was a setting mismatch in my image.ini.append.php file : on my local machine, i'm using GD where on my webserver I'm using ImageMagick. So it could not work when I overwrote server settings with local ones.
A few more advices : - Check your error log : when eZpublish can't resize images as it should, it adds a line in var/log/error.log like :
eZImageManager::createImageAlias:
with details about what went wrong. - Could it be disk space related ?
<i>Could it be disk space related ?</i>
Actually, that's a good general point :) eZ publish is quite demanding when it comes to disk space. And then unless one has a way and/or a habit of monitoring the available space, he will deal with the problem sooner or later. And it's usually very confusing since it is usually the last place you look :)
My little site runs on MacOS. The day before the problem started I run disk utiity a program that checks the disk directories and file permissions. The only thing that found was:
"Permissions differ on ./private/var/log/secure.log, should be -rw------- , they are -rw-r----- " and it corrected them. No permissions were modified in my ezp intallations. just to be sure I set the permissions again to the proper one for my site. Still no go.
I am using imageMagick so I followed Damien's suggestion about it. My other ezp site on the same server works fine!
Disk space is not an issue. There are always more than 60GB free for both sites. I turned on debug output as Piotrek suggested. And I get the following message for every picture
