All plugins created by NAMS ToolKit use standard code encryption and use IonCube, an industry leader, to manage that encryption.
The installer will automatically load IonCube on your server. If you experience errors on IonCube, contact your hosting company to ensure they allow IonCube and have the latest version enabled.
If you still have any issues, please contact support@namssupport.com and we'll help you in any way possible.