Steinberg UR12 | macOS Catalina crashes during driver installation

I purchased Steinberg UR12 from Turramurra music on 21st November 2017.

Yesterday, I tried to install STEINBERG driver in a MacBook Pro to support macOS Catalina as STEINBERG is now supporting 10.15.x*
https://www.steinberg.net/en/support/downloads_hardware/downloads_ur12.html

First I started with YAMAHA STEINBERG USB DRIVER
https://www.steinberg.net/en/support/downloads_hardware/yamaha_steinberg_usb_driver.html

During installation process I was asked to allow “Yamaha Corporation” and then restart to finish the installation.
https://helpcenter.steinberg.de/hc/en-us/articles/115001790330-macOS-Systemerweiterung-blockiert-Hinweis-bei-der-Installation-von-Hardware?_sp=f1082d09-7b7b-4868-930d-374fc9f4772d.1578438277542


After restarting the MacBook Pro, it never opened. I tried many ways, safe boot, forcefully restarted the machine. But nothing happened, I had to use disk repair utility to recover OS & data from time machine backup. It is still restoring and will take more 12 Hours to finish.

At this stage what should I do ? Do I have to use macOS Mojave to use Steinberg ? When I can use Steinberg in macOS Catalina. ? Why it crashed like this way ? Did I do something wrong ?

Regards
John Adams
https://www.sapphireone.com/