I'm trying to register the above multi-site domain for

Hi,

I'm trying to register the above multi-site domain for the Integrated Video API but I get the following error message. When I view the Support Videos API page, it says "No Domains Registered".

That domain is already registered by you or another user! Contact support for help.

I'm installing in this sub-domain - solutions-biz.com/tutorials/.

Please help. Thank you.