You are using the wrong driver. Use the "Driver" tab inside the tool to install the CDC Serial or Samsung USB drivers again.
Improved the ability to change CSC (Country Specific Code) and disable Knox. : samfw frp tool 3.0
The highlight of Version 3.0 is the "Auto FRP" button. For most Samsung devices (A, M, F, and S series running One UI 5.1/6.0), the tool automates the entire process. You put the phone into download mode, press one button, and the tool does the rest. You are using the wrong driver
The is a popular free utility designed to bypass the Factory Reset Protection (FRP) lock on Samsung and other Android devices. While the user specifically asked for version 3.0 , note that newer versions (up to 5.4 ) have been released with expanded features and bug fixes. Key Features of SamFw FRP Tool 3.0 : The highlight of Version 3