Add Re-Order page on custom menu (Created by theme)

Hello there,

I have installed the plugin successfully and seems to work correctly but there is a custom post type created by the theme which is included in a custom menu section. In the plugin’s settings, I have enabled the re-order for this post type and I have also checked that it is not an hierarchical post.

In this custom menu section, re-order link is not shown for this post type and when I try to reach the link follows manually:
edit.php?post_type=speaker&page=order-post-types-speaker,
I am getting the message: Sorry, you are not allowed to access this page.

Is there any way to add the Re-Order link for this post type via a function and make it works?

Thank you in advance!