I'm really sorry for the late Jean. Because your issue took us to take a while. And after investigating and changing several files, we found that your localization plugins are making the issue. The plugins are translating the URLs. So the pages showed not found.
So to solve that. I've deactivated all your plugins except WooCommerce. Now everything is working fine. Please translate the dokan.pot file which is located at “\wp-content\themes\dokan\languages\” to translate the theme in your language.