Facebook Like?

I am using the latest version of zen cart with the aparral Boutique template.

I have the button where I want it (next to the image on the product page). When I click the like button it shows up with either error which gives this -
(You failed to provide a valid list of administrators. You need to supply the administrators using either a "fb:app_id" meta tag or a "fb:admins" meta tag to specify a comma-delimited list of Facebook users.)
or it simply flicks back to like with no error - similar to refreshing.

I have searched both the forum and internet and come up against lots of similar questions and answers. They all seem to advise the same thing with no trouble shooting if it goes wrong.

This was working last week but I must have overwrote the code inadvertantly. I am eager to get it working as soon as possible as I set the website live last night and didnt realise until I went to like the page.

my site is www.creative-soaps.com

Thanks in advance