Hi Collin,
I wrote the plugin – Several people have had the problem you’re having and I’m trying to find a way around it. It’s a problem with the library I use for contacting flickr as well as misconfigured php installs on servers. You can delete the anotherFlickr directory from your ftp server to get this problem to go away for the time being.
If you have any more support questions you can direct them to my site (https://www.lukeh.com/?p=141)
-Luke