Pi-hole is working, but you disabled the Default Group (enabled=0 means disabled):
** [ DIAGNOSING ]: Groups
id enabled name date_added date_modified description
---- ------- -------------------------------------------------- ------------------- ------------------- --------------------------------------------------
0 0 Default 2024-09-28 17:10:24 2025-01-06 19:59:44 The default group
Since you only have one group with one list and this group is disabled, Pi-hole is not blocking.
Enable the Default group and it will start to block.