Problem with a encyclopedia map

I am using a plugin to creat a encyclopedia. NOw all articles are written to http://vinovademecum.com/enzyklopaedie/

I have the feeling that all srticle within http://vinovademecum.com/enzyklopaedie/ and below are not listed in the sitmap.

Can you help me? What do I have to do in order to get these articles intp the sitemap and then finally listed?

Thanks in advance für your support!

https://wordpress.org/plugins/google-sitemap-generator/