Found a new folder 'cpdb' in my home folder

Ubuntu Version: 25.04

Desktop Environment GNOME

Problem Description: a new folder ‘cpdb’ in my home
In my home directory I see a new folder ‘cpdb’ containing only another empty folder ‘sockets’

Relevant System Information: Ubuntu 25.04 installed 11 April 2025 10∶31∶30
cdb folder created 11 April 2025 20∶51∶11

corrado@corrado-n3-pp-0411:~$ inxi -SCxc
System:
  Host: corrado-n3-pp-0411 Kernel: 6.14.0-15-generic arch: x86_64 bits: 64
    compiler: gcc v: 14.2.0
  Desktop: GNOME v: 48.0 Distro: Ubuntu 25.04 (Plucky Puffin)
CPU:
  Info: 6-core model: 11th Gen Intel Core i5-11400 bits: 64 type: MT MCP
    arch: Rocket Lake rev: 1 cache: L1: 480 KiB L2: 3 MiB L3: 12 MiB
  Speed (MHz): avg: 900 min/max: 800/4400 cores: 1: 900 2: 900 3: 900 4: 900
    5: 900 6: 900 7: 900 8: 900 9: 900 10: 900 11: 900 12: 900 bogomips: 62208
  Flags: avx avx2 ht lm nx pae sse sse2 sse3 sse4_1 sse4_2 ssse3 vmx
corrado@corrado-n3-pp-0411:~$ 

What I’ve Tried: I searched the log for an update at that time but found nothing

Edit: Searching in journal I found a problem with papers (error printing a PDF) at this time.
I reproduced problem later and created an issue about: Bug #2107233 “papers does not print PDF” : Bugs : papers package : Ubuntu

Concerning printing I found Open Printing - cpdb-libs from Common print dialog backends.