Associating an existing user profile with an account

If you've received the following error, "You do not have access to any accounts. Please create a new account." please see below for how to fix it: 

As an Administrator on the account, you'll need to associate the email such as [e-mail] with the account once again.

• Navigate to Settings > Manage Users.
• In the upper right corner of the page, click New User.
• Enter the user's email address and tab out of the field.
• Click the show user button.
• Scroll to the Assign Roles panel, select the role you wish the user to have, and then select which account(s) you want to provide access to.