To reset your password go to the public page for your group. Groups most often have a subdomain name for their public page, like groupname.dreamseedo.org. On that page, find and click the login button. Then click the text link 'Forgot your password?'. That will take you to a page to enter the email address that you used to sign up, to reset their password. You will be sent an email to go through that reset process.
Note: If someone uses a third-party sign-up method like Google or Clever, they must use the same method to sign back in, and this process will not work.
PUBLIC GROUP PAGE
LOGIN PAGE - FORGOT PASSWORD LINK
RESET PASSWORD PAGE