fix

application/classes/Model/Account.php

@@ -4,7 +4,7 @@ class Model_Account extends Model
 {
     public function setHashKey($key)
     {
-        $sql = "SELECT SetHashKey('$key') AS Key;";
+        $sql = "SELECT SetHashKey('$key') AS `Key`;";
         $key = DB::query(Database::SELECT, $sql)->execute();
         return $key->get('Key');
     }