Let's Encrypt certificate missing

Hello,
I have installed the Let’x Encrypt add-on.
I just moved my domain from Namecheap to Cloudflare.
I also changed the certificate’s challenge type to DNS.
Since them I can’t manage to find my new certificate.
Every time I run the add-on it I can’t understand if it works fine or not.
There is a problem with a symlink it seems… but I don’t know if it’s a blocking error.
Then every time it increments a counter in a directory name but I cannot find that directory

s6-rc: info: service s6rc-oneshot-runner: starting
s6-rc: info: service s6rc-oneshot-runner successfully started
s6-rc: info: service fix-attrs: starting
s6-rc: info: service fix-attrs successfully started
s6-rc: info: service legacy-cont-init: starting
cont-init: info: running /etc/cont-init.d/file-structure.sh
cont-init: info: /etc/cont-init.d/file-structure.sh exited 0
s6-rc: info: service legacy-cont-init successfully started
s6-rc: info: service legacy-services: starting
services-up: info: copying legacy longrun lets-encrypt (no readiness notification)
s6-rc: info: service legacy-services successfully started
[10:49:02] INFO: Selected http verification
[10:49:02] INFO: Detecting existing certificate type for my domain
Saving debug log to /var/log/letsencrypt/letsencrypt.log
Renewal configuration file /data/letsencrypt/renewal/mydomain.conf produced an unexpected error: expected /data/letsencrypt/live/mydomain/cert.pem to be a symlink. Skipping.
Saving debug log to /var/log/letsencrypt/letsencrypt.log
Requesting a certificate for my domain

Successfully received certificate.
Certificate is saved at: /data/letsencrypt/live/mydomain-0007/fullchain.pem
Key is saved at:         /data/letsencrypt/live/mydomain-0007/privkey.pem
This certificate expires on 2024-11-03.
These files will be updated when the certificate renews.
NEXT STEPS:
- The certificate will need to be renewed before it expires. Certbot can automatically renew the certificate in the background, but you may need to take steps to enable that functionality. See https://certbot.org/renewal-setup for instructions.

- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
If you like Certbot, please consider supporting our work by:
 * Donating to ISRG / Let's Encrypt:   https://letsencrypt.org/donate
 * Donating to EFF:                    https://eff.org/donate-le
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
s6-rc: info: service legacy-services: stopping
s6-rc: info: service legacy-services successfully stopped
s6-rc: info: service legacy-cont-init: stopping
s6-rc: info: service legacy-cont-init successfully stopped
s6-rc: info: service fix-attrs: stopping
s6-rc: info: service fix-attrs successfully stopped
s6-rc: info: service s6rc-oneshot-runner: stopping
s6-rc: info: service s6rc-oneshot-runner successfully stopped

Could you help me understanding how to fix this problem?
Where are the directories mentioned in the log?

Thanks