Error On Admin Login

[Anshpcea]

I have just merged the database for new webhost - Now, after merging and updating vbulletin 3.8.3 , all went fine but when I went to admin login page this error is coming after entering admin username and pass ----

error message --

Warning: require_once([path]/madp/detection.php) [function.require-once]: failed to open stream: No such file or directory in [path]/includes/functions_login.php(185) : eval()'d code on line 3

Fatal error: require_once() [function.require]: Failed opening required '/home2/mtvstunt/public_html/madp/detection.php' (include_path='.:/usr/lib/php:/usr/local/lib/php') in /home2/mtvstunt/public_html/includes/functions_login.php(185) : eval()'d code on line 3

[Steve Machol]

This error is from a plugin you've installed. You need to disable each of your plugins then turn one at a time to see which one is causing this.

If you cannot log into the Admin CP then to disable the plugin system, edit config.php and add this line right under <?php

define('DISABLE_HOOKS', true);

This will disable all hooks and allow you to log in properly with no hooks running.

http://www.vbulletin.com/docs/html/disable_plugins