# Posting as it may help others
For some time I've had odd "random" errors with Zenphoto, mainly (but not limited to) full size images displaying as a black screen with "{{Error}}" in the middle. There was nothing obvious in the ZenPhoto logs
After a lot of digging, I *think* it was down to running out of storage on my commercial webhost. As a first guess, ZenPhoto retrieved the image from "albums", tried to cache the full size image but couldn't (no more storage...) ZenPhoto then tried to display the cached image, and it wasn't there...
Other related issues were being unable to write log files and (towards the end) being unable to patch or upgrade the site.
So, if things look "weird" with funny errors, *Check the free space on your site* !