Strange message on site?

[judgedelta]

Fatal error: Memcache is not installed in [path]/includes/class_datastore.php on line 185

I don't know enough about computers to know what this is. I'm running a Mac.

 

[BirdEyes]

I'm on a PC and also have been receiving this message intermittently this afternoon. Just reload the page and it will eventually work. The site seems to be having some sort of issue.

 

[wakajawaka]

http://www.snipershide.com/shooting.../206218-fatal-error-message-snipers-hide.html

 

[Lowlight]

One of the 3 servers went down they took it out of the rotation