Open Source Document Management System | OpenKM

Hello everyone
I am just trying to explore "categories" concept but public demo instance of OKM is givving me "Error when communicationg with server (GetChilds)" error when trying to display categories.
I have also tried on mine downloaded community instance version 6.3.2 (build: 8289) where I have no error returned but I can only create a folder under categories but all other options to create/delete are grayed out.

Can you please advice how to manage this categories?

Thanks.

Because users in demo sometimes apply changes what might affect security of other users, might be this is the reason why it was not working when you tested. I reviewed today and all seems right ( as can be shown in the screenshots below ).

I suggest use latest OpenKM community version 6.3.6 rather 6.3.2.