Password reset error

Hi,

I am getting this error when clicking the reset link received in the email. What shall I do? I don’t see any white space in plugin.php or pluggable.php. And have try copy over a fresh one. But still get this error. Anyway the password does actually get reset, even with this error message showing.

Any can help?

Warning: Parameter 1 to wp_password_change_notification() expected to be a reference, value given in C:\xampp\htdocs\folder\wp-includes\plugin.php on line 395

Warning: Cannot modify header information – headers already sent by (output started at C:\xampp\htdocs\folder\wp-includes\plugin.php:395) in C:\xampp\htdocs\list\wp-includes\pluggable.php on line 890