Apt-files not working after Kicksecure installed on Debian

Support
1

Hi,
After install Kicksecure related packages on Debian 12, apt-files search always tells me “cache is empty” even I execute “apt-files update”.
I installed apt install security-misc usability-misc apparmor-profiles-kicksecure sandbox-app-launcher kicksecure-base-files dist-base-files
Please help me to fix this!
Thanks in advance

2

Please follow documentation:

3

Thank you