Twitter returned an invalid response. It is probably down.

I had the plugin working perfectly then all of a sudden after 4 days it just stopped working. I get an error: “Last Error: [Fri, 26 Sep 2014 02:22:58 +0000] Twitter returned an invalid response. It is probably down.”

I deleted the plugin and reinstalled it tried different api keys but nothing works.

How do I fix this issue?

https://www.ads-software.com/plugins/oauth-twitter-feed-for-developers/