This is a known bug in ezwebin 1.1 (menu/flat_top does not filter classes), you need to upgrade to 1.2. But since it's using nested cache blocks you also need to update ez publish to 3.9.2
You need to update eZ Publish to 3.9.2 first, then follow ezwebin upgrade instruction mention is this document: http://ez.no/doc/content/download/17538/72970/version/3/file/ezwebin_setup.pdf