create custom post type in WCFM

I used the plugin source code mentioned in this comment
https://wclovers.com/forums/topic/how-to-add-custom-post-types-to-your-store-manager-dashboard/#post-79940
and I create 2 new custom posts

1- the view links of the created custom posts,
https://prnt.sc/1zw5stk
it goes to website.com/?p={{post_id}} when I use permalink structure as “Post name”
and in the same time when i go to the link it give a 404 page
i tested : website.com/{{post_type_slug}}/{{post_id}} : it gave 404 page
i tested : website.com/{{post_type_slug}}/{{post_slug}} : it gave 404 page

2- also I need to set a custom template for the custom post types, so I create single-{{cutomposttype}}.php but this didn’t make any different

I thought perhaps that because this new custom post type is private types but I didn’t find any way to check that or edit this option causes the code snippet which registers the custom post type doesn’t mention anything about the post type publicity