Only one section cannot be found

SEF Advanced seems to work fine for my site, except for one section which results in 404 error. I cannot see how this section is different from the other sections which link correctly. Please advise me where to look to solve this problem.
Thank you.

I just another user, but I'd be happy to take a look if you want to send me the link.

Have a look at the URL replacements that you might have in your settings.

just å=>aa,é=>e,ë=>e
none of these characters are in the section names.

You can't have é=>e,ë=>e

The reason is explained in FAQ:
www.sakic.net/support/faq/sef_advance/#18