After updating cups.service isn't working.
First it gave me a bad file descriptor.
After some investigation I figured out that cupsd.conf is completely empty.
I tried reinstalling with apt install --reinstall cups
and apt purge cups and apt install cups.
Both gave a non-working variant of cups.

When copying cupsd.conf from my other pc, cups works.
When I reboot it the file is empty again.

Thank you for your time