changing NVDARequiredOS to match the build system is just to install the web drivers on another version of mac os os, to bypass the system check
you have to do like gagaraz said
i been doing that same method for years, there is no point for me to upload the same file that he already uploaded
simply download that file, delete yours from S/L/E
use kext wizard or similar to install the file
then reboot
sometimes the system will boot right away if you had the web drivers already check on nvidia driver manager
but if you changed to generic web drivers then you will have to boot with nv_disable after you reboot
now change it to web drivers and reboot
now it should work
sometimes it just take an extra step if you had it on generic web drivers before installing the file
good luck