Only attempt to iterate through VPS list query results when the result isn't empty

frontend/modules/client/vps/list.php

@@ -15,10 +15,10 @@ if(!isset($_CVM)) { die("Unauthorized."); }
 
 if($sLoggedIn === true)
 {
-	$result = $database->CachedQuery("SELECT * FROM containers WHERE `UserId` = :UserId", array(":UserId" => $sUser->sId));
-	
 	$sVpsList = array();
 	
+	if($result = $database->CachedQuery("SELECT * FROM containers WHERE `UserId` = :UserId", array(":UserId" => $sUser->sId)))
+	{
 		foreach($result->data as $row)
 		{
 			$sVps = new Vps($row);
@@ -46,6 +46,7 @@ if($sLoggedIn === true)
 				'virtualization-type'	=> $sVps->sVirtualizationType
 			);
 		}
+	}
 	
 	$sMainContents = Templater::AdvancedParse("{$sTheme}/client/vps/list", $locale->strings, array(
 		'vpses'	=> $sVpsList