since from i started Google adsense, im using my google adsense account same password, but today i opened my adsense account it doesn't opening what happen did i done any mistake ............
Maybe you entered the wrong password or put your CAPS ON? Check if you entered the username correctly, that happens to all of us. Or else, yeah, like what zaibysk said, try clearing your cache because you really can't do anything else
Just a thought have you checked you email inbox as it is possible that you may have had the dreaded email from Google shutting your account down for what ever reason,i hope i am wrong
for sure,... go to gmail google .com a check if any there email sent by adsense that say you've got Banned, other wise you can still log in to adsense account, except you have different password between gmail and adsense
I'm sure you didn't get banned because if you did the ads in your website wont show or when you login you will get a message that you got banned, so you either entering your information wrong or you got hacked have you tried resting your password ?