What you will need to do is reinstall the current CFW you are on, for me it was 4.21.2, so i reinstalled 4.21.2 in recovery mode and the spoofer went and im now running 4.21.2 Dex, Hope this helped
You Can Open up the spoofer and click backup and you will see your cfw you can click it but i suggest you do it the way jason has told you as when i uninstalled sgk 4,46 spoofer it semi bricked it