When I loading a custom module, login again , received a error:
'
Warning: array_key_exists() [function.array-key-exists]: The second argument should be either an array or an object in D:\Program Files\Apache Software Foundation\Apache2.2\htdocs\SugarCE\modules\Relati onships\Relationship.php on line 190

Fatal error: Call to a member function getQuery() on a non-object in D:\Program Files\Apache Software Foundation\Apache2.2\htdocs\SugarCE\modules\Contac ts\Contact.php on line 412
'
Now I can't login to sugarcrm , what should I do?