Impossible to get Let's Encrypt certificate http/dns : error error read certificate: open : no such file or directory

[PastaGringo]

Describe the bug
I just installed nginx-ui with docker.
I want to create my first reverse proxy for nginx-ui (nui.domain.tld -> IP:80) but I can't get a valid ssl Let's Encrypt certificate.
domain.tld is my domain where I set DNS A records (domain + *.domain) pointing to my external VPS IP address.

To Reproduce
Steps to reproduce the behavior:

• Manages Sites > Add Site:
  Configuration name: basic
  Listen: 80
  server_name: nui.domain.tld

• Next
  Enable TLS ✅
  Do you want to enable TLS popup: OK
  Encrypt website with Let's Encrypt ✅
  Challenge method: HTT01
  Key Tape: RSA2048
  ACME user: System Initial User (already setup my Let's Encrypt account)

• Next

The popup opens and nothing happen after Getting the certificate, please wait...

Expected behavior
The TLS certificate is generated from Let's Encrypt and set to server nui.domain.tld.

Screenshots

Info (please complete the following information):

• Server OS: Ubuntu 22.04.3 LTS
• Server Arch: x64
• Nginx UI Version: 2.0.0-beta.20 (129)
• Your Browser: Chrome
• Docker: 26.1.1
• Docker compose: 2.27.0

Additional context
Logs from docker logs -f nginx-ui:

2024/05/02 14:23:18 /home/runner/work/nginx-ui/nginx-ui/model/cert.go:57
[5.409ms] [rows:1] INSERT INTO `certs` (`created_at`,`updated_at`,`deleted_at`,`name`,`domains`,`filename`,`ssl_certificate_path`,`ssl_certificate_key_path`,`auto_cert`,`challenge_method`,`dns_credential_id`,`acme_user_id`,`key_type`,`log`,`resource`) VALUES ("2024-05-02 14:23:18.298","2024-05-02 14:23:18.298",NULL,"basic",NULL,"basic","","",0,"",0,0,"2048","",NULL) RETURNING `id`
2024-05-02 14:23:18     ERROR   certificate/issue.go:88 get certificate info error error read certificate: open : no such file or directory
[GIN] 2024/05/02 - 14:23:18 | 200 |   58.009098ms |   92.184.107.24 | GET      "/api/domain/basic/cert?token=MyToken==/"

docker-compose.yml:

  nginx-ui:
    stdin_open: true
    tty: true
    container_name: nginx-ui
    restart: always
    environment:
      - TZ=Europe/Paris
    volumes:
      - './nginx-ui/nginx:/etc/nginx'
      - './nginx-ui/nginx-ui:/etc/nginx-ui'
      - '/var/www:/var/www'
    ports:
      - 80:80
      - 443:443
    image: 'uozi/nginx-ui:latest'

[0xJacky]

Sorry, I'll fix it later.

[0xJacky]

Please try v2.0.0-beta.21, it should be fixed now.