[Theme: Calypso] Problem with tools.php

Hi!

I’m trying to install a new theme but there’s an error in tools.php
Parse error: syntax error, unexpected T_STATIC in /home/caiod073/public_html/wp-content/themes/calypso/core/classes/tools.php on line 36
I don’t know what to do, it’s my first time using wordpress.

Look the code:

32 if (is_array($key)){
33
34 $return = array();
35 foreach ($key as $k){
36 $return[$k] = static::arr($array, $k, $default);
37 }
38 return $return;
}

Please, help me!