Error importing comments since WP3.5 upgrade

I have cleared errors several times and I keep getting the same error:

“Add Link to Facebook – More on China’s leadership transition and its impact: Import comment: Facebook error: TSocket: Could not read 4 bytes from 10.170.54.37:12001 to local port 35554 (Array ( [wrapper_type] => Socket [stream_type] => [mode] => [unread_bytes] => 0 [seekable] => [uri] => [timed_out] => [blocked] => [eof] => 1 ) ) @ 2012-12-14T17:44:55+00:00”

Is this a file permission issue?

I saw that another user is experiencing the same issue, could it be a problem with the plugin?

Thankyou for your prompt answer,,,
We love your plugin 🙂

http://wordpress.org/extend/plugins/add-link-to-facebook/