Error when try change the password of a customer from of the backend.
Fatal error: Uncaught Error: Call to a member function getBackend() on boolean in /app/code/core/Mage/Eav/Model/Entity/Abstract.php:1554
In the line 1554 of the Abstract.php file have this:
$backend = $attribute->getBackend();
I see and i have the attribute rp_customer_id created correctly.