Noob Question.. Please Answer

Hi.. i login to my admin panel in WHMCS but my password is wrong.. and try to login 2nd times. but i was redirectly to www.1and1.com and i cant log in again.. whats the problem with that ??

and i also want to change the email www.youdomain.com to my own URL..

please i really need answer.. im freaking annoying now T_T