I have the following issue using an Opencart extension Tweetexclamation

When I login as admin then open the Store Front My tweets appear

When I just load my homepage as a customer would i get "Loading Tweets"
Using google’s developer toold I have found the following error

XMLHttpRequest cannot load No ‘Access-Control-Allow-Origin’ header is present on the requested resource. Origin ‘’ is therefore not allowed access.

Any help would be welcome!