Twitter feed randomly stops working


I’m currently experiencing some strange behavior when importing my twitter feed directly into my site using the twitter API. For some reason my feed stops working at random times throughout the day and then it starts working again. I also get a javascript error in my firefox console which says “user is undefined” during the period it stops working.

Just wondering if anyone else is experiencing a similar issue and what can be done to resolve this issue. The website i am running my twitter feed on can be seen here: The feed is in the footer area.

Any assistance would be greatly appreciated.