Wrong Appearence of Side Widgets

Hello everyone,
I am worried! My blog doesn’t not appear as usual. My theme is Quentin. I have one column blg with side widgets. I usually see them in a row, in the order I liked and fixed. Now I can’t see the sidebar with my search, cateogories, freshly pressed articles, links and so on. I only see one title of an article I already published. What’s happening and how can I fix it? Please help me.
Thank you. Best wishes. Paola