This is labeled as Premium cXF DIY Customization. Access to code requires one of our cXF Membership, which gives you access to all our Premium cXF DIY Customizations and also to our add-ons.
If you got our add-ons on websites other than customizexf.com or xenforo.com, then you got them on pirated sites. If so, we suggest you remove the add-on from the server and download it from the original site. Please, support the developers and fight piracy!