Yesterday evening, social networking giant, Facebook suffered a shutdown which they have described as the worst in four years.
It is thought that around 135 million people were unable to login yesterday evening, between the hours of 19.00 and 21.00 BST.
Facebook stated the "huge disruption" was caused by a software flaw to the site. "Facebook Isnt Working" even became a trending topic during Facebook's downtime.
Facebook is the largest social network on the internet, with over 500 million registered users.