Hi, @Aamirhaider. From what you've said, I'm guessing you are using SAS OnDemand for Academics. The users of SAS OnDemand for Academics have to re-accept their terms and conditions license once-a-year. Unfortunately, when their license is expired, youget a message like “Incorrect account name or password.”
Since your issue is specific to you, I would encourage you to submit a Technical Support track to support@sas.com or call 1-800-727-0025.
Thanks,
Randy