Download this file: https://mega.nz/#!RNFkCaCK!OQOyA635d9nXjjv8kGFTEz6aTrdVA4RzRXkfFt0-M6w and put in in the same folder as your setup.exe and configuration-Office2019Enterprise.xml, run the file as administrator and the setup will start.
Hopefully it will work, any problems, reply below.
Regards,
SnowBall