Error Flickr Collections

Howdy,
When I try to add a collection with other collections, I get this php error:
Warning: Invalid argument supplied for foreach() in /…../wp-content/plugins/photonic/extensions/Photonic_Flickr_Processor.php on line 856

Then, it displays the collections it should twice – it lists them once, then it lists them again.

Anything I can do to fix this?
Thanks,
-j

http://wordpress.org/extend/plugins/photonic/