Hi, my name is Laura.

After last software update i cannot anymore see images in preview (thumbnail) on my site. I also tried to delate and reinstall all site, but thumbnail are not available.

To see images I must click on magnifying glass icon.
Also the logo image is not visible.

Here is the address: http://immagini.ipsia-acli.it

Thanks
Good bye
Laura

As always: Errors in Zenphoto and server log and if which ones?

Also try a standard theme. Note that the zpFocus theme has officially been abandoned by its developer. I made rough updates but will not really maintain or support them:
https://github.com/acrylian/gjr_themes

Sorry, I'm new and didn't notice the advice.

Here is the error log: http://www.ipsia-acli.it/staffipsia/error_log.txt

I don't understand what it means.

I have the same problem with other themes, also in the default installation.

Thanks
Laura

You should try to re-upload the package and also check permissions. Also make sure that your server matches the requirements. Some errors don't really make sense.

(The error log advice is listed in the the forum rules you should have read when registering ;-))

I reinstalled zen photo in 2 different ways.

Here http://immagini.ipsia-acli.it/ using the script of my host service.
Same problem without any error log, also with defaul theme.

Here http://ipsia-acli.it/immagini2/ uploading the package via ftp.
Same problem with error log:
[14-Sep-2013 15:57:20 Europe/Berlin] PHP Warning: filesize() [function.filesize]: stat failed for /home/ipsiaacl/public_html/immagini2/zp-core/functions-image.php in /home/ipsiaacl/public_html/immagini2/zp-core/functions-basic.php on line 1562

Checke the file/folder permissions. See the user guide for info.

Most specifically, your PHP is not able to execute a the `filesize()` function on your `functions-image.php` file. So either that file is missing (not likely) or there is some kind of file security setting (such as a file permissions) that is preventing this operation.

Files and folders permissions are set as indicated in the user guide (0755).

You're right Sbillard: in the http://ipsia-acli.it/immagini2/ installation (where I have error log) the file functions-image.php is missing and every time I upload it, it automatically disappears.

But in the other installation http://immagini.ipsia-acli.it/ the file is not missing and I have the same problem. On this installation I don't have any error log.

Zenphoto would never remove that file, so if it is automatically vanishing there is something strange going on with your server.

On the second site, your images are failing to render. There is a debugging article on that that you should review. But the common cause is images that are too large (by dimension, not file size) for your server to process.

All my images were about 640X400 pixel.
Now I try to upload smaller images (400X250), but the problem persists.

I read the article http://www.zenphoto.org/news/problems-with-albums-and-images, but I can't find any useful suggestion:
- if I see add "&debug" to the image url I see the image without any error
- I usually upload images via ftp, I tried to upload some images in the back-end, same problem with additional error when I try to open the image: 403 Forbidden Access to this resource on the server is denied!

Other suggestions concern to large image files, that's not my case.

I use zen photo for a long time and everything has always worked well until the last zen photo update.

That sounds like a permissions issue with your server.

You're right acrylian. I solved the problem contacting the server assistance and uploading the package via ftp.

Thanks
Laura