Need help with ezauth

[eluser]Unknown[/eluser]
i am getting error

Deprecated: Assigning the return value of new by reference is deprecated in C:\xampp\htdocs\ez\system\codeigniter\Common.php on line 85

Deprecated: Assigning the return value of new by reference is deprecated in C:\xampp\htdocs\ez\system\codeigniter\Common.php on line 91

how do i solve it....