Some problems with MariaDB

Hi!

I have a problem with MariaDB and I don’t know if is because a new OS update or something else, maybe someone knows how to solve it.
Till few days ago, lets say 2 weeks, the size of mariaDB was everytime around 1.5GB and knowing this I have not checked every day, but for about 2-3 days, I see that mariaDB it is around 12GB and it is growing.
I have an automation which execute a purge every day at 4 o clock, but I see no big change.

This is what I have configured as recorder, and it is like this for at least 1-2 years…

recorder:
  db_url: !secret mariadb_url
  purge_keep_days: 7
  commit_interval: 30
  exclude:
    entity_globs:
      - sensor.watchman*

And this is what I have as automation purge:

alias: Auto - Database purge (purge database every day at 04:00)
description: ""
trigger:
  - platform: time
    at: "04:00"
condition: []
action:
  - service: recorder.purge
    data:
      keep_days: 7
      repack: true
mode: single

Any idea how to solve this issue? Or at least, how to delete the entire database and start from scratch?

If it helps, this is a history of the database growing in 7 days

Thank you all, in advance!