Graphs1090 & tar1090 stopped working

since a couple of days on my installation dump1090 & graphs1090 stopped working. Any idea?

cat /etc/os-release
PRETTY_NAME=“Debian GNU/Linux 12 (bookworm)”
NAME=“Debian GNU/Linux”
VERSION_ID=“12”
VERSION=“12 (bookworm)”
VERSION_CODENAME=bookworm
ID=debian
HOME_URL=“https://www.debian.org/
SUPPORT_URL=“Debian -- User Support
BUG_REPORT_URL=“https://bugs.debian.org/

Thanks, Marcus