I am using facebook album fetcher module. It shows an error message
An unknown error occurred while trying to fetch the album (empty reply).
Can anyone tell me how to resolve this issue.
The author of the module Facebook Album Fetcher has already posted a reply to a similar/identical problem that was posted in drupal.org. The general idea is that if you have followed the 10 steps that are described in the module page, you should log in to your facebook account and make sure that the album that you are trying to fetch is actually public.