Suddenly, home page opens when trying to view other pages
bsmejobs.net
For no apparents reason all links to the following pages (on the actual site and when working in the "all pages" back end) go to the home page.
Edit job
Edit resume
Job date archive
Blog
Other pages are fine.
The only change I made was to change the home page to static (using the page "Welcome"). I changed this back to "Your latest posts", but this hasn't fixed the problem.
I am a Wordpress beginner. Help!