Password reset and Forgot Password for Basic User

I receive the following email when resetting the password from the Appian Console or using the "Forgot Password" option from the login page.

"We recently received a request to reset your password. However, it is not currently possible to reset your password because your credentials are maintained by another system.

You should contact your site administrator if you need to reset your password or if you did not expect this email."

Please help on to reset password. 

Thanks,

Umesh Kumar