The LyX project is currently migrating servers, so at the moment the Bugzilla service is not operational. You may try this link: http://www.lyx.org/trac.

If you followed a link of the type http://bugzilla.lyx.org/show_bug.cgi?id=449 then please for now manually retype that as follows

http://www.lyx.org/trac/ticket/449. To save you some of the typing, here is a link to http://www.lyx.org/trac/ticket