Got a response from Page Lines
On checking your site it appears you’re using one of our older themes, Platform Pro. Unfortunately a while back due to the changes in the twitter api the way that twitter feeds were called for was changed which resulted in the twitter bar which is hard coded into the theme no longer functioning.
As the Platform Pro theme is now a legacy theme, unfortunately it will receive no further updates to correct this issue.
We would advise using a widget or jetpack plugin to provide your twitter activity in place of the twitter bar section on your site to resolve this.
You can hide the twitterbar section by placing the following custom css in to your custom css panel and saving.
#twitterbar {display:none;}