Device is not writable: Permission denied

[Ares-87]

Hi,
I have this issue when the script launch the first instance of Windows, return this line:
qemu-system-x86_64: -drive file=/dev/loop1,index=0,media=disk,format=raw: The device is not writable: Permission denied

How I can fix it? This issue is showed only in Ubuntu installation.

Thanks

[Ares-87]

SOLVED
I changed the OS from Ubuntu 21.04 to Debian 10 and now works without problems.