I had checked your site yesterday to investigate the Company Profile widget that was under other content. It worked then, but now I'm seeing the Valid Domain javascript message you're reporting.
There's no way for us to test what you have set for the API Domains in your LinkedIn application. Can you please re-check your LinkedIn Application and ensure your Javascript API Domains setting is correct. It should look like:
http://los-roques.com/,http://www.los-roques.com/
Please note that there's a comma between each and not a new-line. That's how LinkedIn requires that setting to be entered.
I hope that helps,
Alex