If this is your first time logging into any CCR server or web portal, you will get this error when logging into OnDemand:
Your home directory appears to be missing
As seen in this screenshot:
You should then log out (click the X to close the browser tab) or click on the link labeled "restart the OnDemand web process" If all goes well, you will then see the regular OnDemand home page:
Please contact CCR help if this process does not work for you.