cant get https

Hello to all i am new at this. Have my nginx working on docker in a Raspi, i had it working fine but i now i can not get certificates, i am working cloudflare and my dns porkbun. i also have homeasssitant on a noter pi whit nginx running i get the same error.
I do not know what is wrong.
thanks

[9/29/2020] [11:44:37 PM] [Nginx ] › ℹ info Reloading Nginx
[9/29/2020] [11:44:37 PM] [SSL ] › ℹ info Requesting Let'sEncrypt certificates for Cert #30: nextcloud.cosasdejorge.cyou
[9/29/2020] [11:44:51 PM] [Nginx ] › ℹ info Reloading Nginx
[9/29/2020] [11:44:51 PM] [Express ] › ⚠ warning Command failed: /usr/bin/certbot certonly --non-interactive --config "/etc/letsencrypt.ini" --cert-name "npm-30" --agree-tos --email "xxxxxxxx@gmail.com" --preferred-challenges "dns,http" --domains "xxxx.xxxdejxxxe.cyou"
Saving debug log to /var/log/letsencrypt/letsencrypt.log
Plugins selected: Authenticator webroot, Installer None
Obtaining a new certificate
Performing the following challenges:
http-01 challenge for xxxx.xxxdejxxxe.cyou
Using the webroot path /data/letsencrypt-acme-challenge for all unmatched domains.
Waiting for verification...
Challenge failed for domain xxxx.xxxdejxxxe.cyou
http-01 challenge for xxxx.xxxdejxxxe.cyou\
Cleaning up challenges
Some challenges have failed.