i have a problem with the images pls help

[redpicasso]

hello, my english is not very good (i'm from Bulgaria) but could you help me?
I use CPG 1.3.0a with phpnuke 7.5.Before 2 weeks all was ok bus yesterday the images startet to display error, when i go to the thumbnails there is pictures but when i go to one of the pictures it displays "X".All the images are in album folder.
What can it be this?
very 10x

[kegobeer]

We don't support PHP-Nuke.  If you want to use Coppermine with nuke, you must switch to CPG-Nuke.