Hi @JS0007,
To begin, you’d have to CTRL+ALT+F2 to a TTY and check, or get, the logs:
sudo journalctl -b -1
If that doesn’t work, you’ll need to boot from installation media and chroot into your system. From there, you’ll have to inspect the logs with the above command, and provide it in this thread. In fact, that might be better, because from the live ISO environment, you can also provide proper information to help you better.