Snapshot AWS error

I just installed and activated Snapshot on a site but I am getting:

Warning: php_uname() has been disabled for security reasons in D:inetpubvhostsdomainname.comhttpdocswp-contentpluginssnapshotlibdestinationsawsAWSSDKforPHPsdk.class.php on line 120

Is there anything I can do about this so I can use Snapshot?