Paragon NTFS for Mac 14 doesn't see NTFS disk (OS X 10.11 El Capitan)
Make sure you have version 14.0.382, previous 14 versions had that problem.
I had this problem with the version I downloaded from the Paragon free upgrade link.
I solved that problem by downloading the 14.0.382 from their website. Strangely the new version didn't show up clicking the "check for update" button on Paragon NTFS preference pane.