Hi,
I see the problem has been reported in beta8, unfortunately it still occurs in beta9.
64bit ISO, 64bit machine.
I tried UEFI install and non-EFI install, both crash during install.
The LiveCD works perfectly, it's only when I try to install it that it will crash.
Creating the boot USB with another tool, with only Linux Mint on it will provide a successful install. But with Sardu, it's a 100% crash.
Unfortunately, I haven't copied the exact error message. I'll have to reinstall Mint on one computer soon, I'll try to take a loot at the error message.