bhutanesephper

I have a log in page as http://www.bhutanfootprintstravel.com/webadmin/index.php, it was working fine until I change the hosting. Now, even when I enter the correct username & password, it doesn't return anything, I mean doesn't even take me to the desired page (index.php) or throughs any error msg. Its same even when I put wrong or invalid username and password. Can anyone please help me here? Regards