Domain Mapping Not Working - Saying Health Status Invalid

Hi,

I have created a new cPanel hosting account with the domain http://www.milli.org.uk where I have installed WP Multi-Site as a Sub-Domain installation with the Domain Mapping Plugin.

I have created a Sub-Site called millibear (millibear.milli.org.uk) and configured cPanel Sub-Domains successfully (I.e. the sub-domain is working).

I have used Park Domain within cPanel to add millibear.co.uk and this appears to be working successfully (I.e. when browsing to http://www.millibear.co.uk WP recognises it but thinks it is an unregistered Site and asks if I would like to create a New Site).

When I view the Dashboard for millibear.milli.org.uk to try and add the Domain http://www.millibear.co.uk it says that the Health Status is Invalid and Does Not add the domain name.

I would really appreciate some help with this as I only have 4 weeks to raise as much as possible for Charity from just £10 and therefore need this website up and running by Sunday (13th October 2013).

Many thanks in advance.

Regards,
Chrystopher