[Lynne]

Try disabling your plugins and see if you still have this problem.
Note: To temporarily disable the plugin system, edit config.php and add this line right under <?php

PHP Code:

define('DISABLE_HOOKS', true); 


Then see if you can get into the admin cp to disable the mod. Also, read the uninstall instructions from the modification or go backwards through the install instructions in order to uninstall it.