1> shows access denied while login the admin (Magento 1.9)... actually tried to Rest-API for 3rd party integration for customer users role. 2> I do not have database details. the client did not provide. please guide how can resolve.
To reset admin password.Go to phpmyadmin and run following command.
UPDATE `admin_user` SET `password` = MD5('irs123456') WHERE `username` = 'admin';
Still facing any problem add comment.I will try to help you.