All of Wiki Pro 's pages are 404 error

Dear support,

I'm using Wiki Pro plugin.(most recent

I'm configured the plugin setting the "slug" field to "manuals"(please see the attached file)
But All page of this plugin are 404 error.
like this.

some information.

1.I'm making themplates that archive-incsub_wiki.php and single-incsub_wiki.php.
2.I localization the plugin into Japanese.
3.I attached the file of my Wiki setting
4. When I turned buck slug name "manuals" to"wiki"(default), 404 error was happened either.

Please help me.
Thanks, Koji.