Random Error Message: Warning: gzuncompress()

[JessB]

We have FCG on 4 sites, and on one of those we're getting an error message (below) intermittently. When it appears the FCG disappears (no white box, nothing, just like its not there), then it will randomly reappear and no error message shown. It's happened 4 times over the last few days. I'm not a coder, but I've checked everything I can think of and have no clue. Any thoughts? Anyone else having this?

Warning: gzuncompress() [function.gzuncompress]: data error in /home/content/d/e/h/dehhost/html/boston/wp-includes/http.php on line 1831

[JessB]

Sorry! Site url is:

http://boston.sportsthenandnow.com/

no error message at the moment, though it was there earlier today.....