Make a backup of your project before following this guide!
Projects using engine versions older the 5.6 follow the guides linked below before this guide
https://defusestudios.com/sgkv2documentation/#Engine-Upgrade
If your version of SGKv2 is older then 2.4.16 follow the guide linked below before following the upgrade guides linked below.
https://defusestudios.com/sgk-v2-fixed-quick-slot-keybind-text-not-updating/