An error occurred while preparing the installation. Try running this application again.

Receiving this error with 2 mins left while downloading. Anyone know what could be wrong? Following the guide here: https://hackintosher.com/builds/asus-prime-z390-hackintosh-build-guide-w-rx-5700-xt/

Z390A 1070 i7 3TB HDD

Installing 10.15.5

Appreciate any assistance or guidance that can be provided.