Your whole site is showing the following error to me:
403 - You've got to ask yourself one question: Do I feel lucky?
Not sure if I need to be logged in somehow or if your site is offline.
Either way, the problem is likely your LinkedIn Application Setup. Specifically, the "Javascript API Domain". That needs to be set properly for your site and would prevent some of the social modules from failing if incorrect. The login functionality doesn't use the Javascript Domain setting, so it may still work even if other features don't.
For your site, the API domain setting should probably be:
www.foxwellassociates.co.uk/,http://foxwellassociates.co.uk/
I hope that helps,
Alex