I looked into your bot OPENXJOBS on our Twitter server, and it is connected to Twitter and running. Other bots that have been created in the last few days are also running and tweeting.
You can manually test your bot using the "Check Status" button from the Twitter page. First go to the "Log" page and set logging to "FINE" then click on "Check Status" and go back to the "Log" page to see what occurred.
Your bot seems like it is not finding anything that matches its keyword sets.
i.e. for the RSS feeds I see,
2015-11-02 08:21:57.931 - FINE -- Twitter:Skipping RSS, missing keywords - [artificial, intelligence] - Nissan to check Takata airbags in Japan again after injury
2015-11-02 08:21:58.377 - FINE -- Twitter:Skipping RSS, missing keywords - [internet, of, things] - Nissan unleashes its autonomous car prototype in Japan
Because you entered RSS keywords, it will not tweet any RSS items that do no include those keywords.
You can enter an "Auto Tweet" to check that your bot is running.