WordPress Section

Hi,

I’ve just set up my blog with WordPress.
Before, I had in my link WordPress3. Now, I could remove it. But now, I lost my different sections.

I don’t if it exists a link or not between them. The host is OVH.

I tried to modify permalinks but it doesn’t work.

I’d like to get back my sections but now, I don’t know how to do.

Thank you for help