List file by category

Hi !

I paid for the pro version and i have the latest version of WordPress.

I would like to have the possibility to display my documents in a normal way (by folders) but also by category (category A ==> gather all the document under the “category A” , category B, category C,…). I will download lots of documents and i would like that my users can filter the documents by the category they are interested in !

I tried to use this shortcode (in my page) : [sp_cdm_categories] but it doesn’t work : (in my page it only show the text “[sp_cdm_categories]”)
Do you have any tips/explanations on how i can make it work ?

Thank you for your answer,
Best regards,
Benoit

https://ww.wp.xz.cn/plugins/sp-client-document-manager/