For the certbot-auto, it needs to use --server, for example,
./certbot-auto --server https://acme-v02.api.letsencrypt.org/directory -d *.ymeng.net --manual --preferred-challenges dns-01 certonly
For the certbot-auto, it needs to use --server, for example,
./certbot-auto --server https://acme-v02.api.letsencrypt.org/directory -d *.ymeng.net --manual --preferred-challenges dns-01 certonly