Getting an error trying to log into my Wordpress

[Kayos]

cpanel username: kayos
site:http://kayos.pcriot.com

Each time I try logging into my admin account on my word press I encounter this error:

Warning: getmypid() has been disabled for security reasons in /home/kayos/public_html/wp-includes/class-phpass.php on line 52

Any assistance on helping me resolve this matter would be appreciated.

 

[Christopher]

Post line 52 from /home/kayos/public_html/wp-includes/class-phpass.php

 

[Kayos]

		$this->random_state = microtime() . (function_exists('getmypid') ? getmypid() : '') . uniqid(rand(), TRUE);