Rebecca, the first thing to try in such cases is clear browser cache & cookies, and maybe restart the browser. If that fails, then try a different browser. I can tell you I can see my job feed just fine in a Chrome incognito window, which is what you were doing, if I'm not mistaken.
Icognito or incognito mode is a feature in Google Chrome that allows you to browse the internet privately, in which none of the pages you visit while browsing in incognito mode will show up in your internet history.
I suggest you follow Valeria's tips above so that you have a job feed based on your category and skills.