3-ui配置Cloudflare SSL Certificate

3x-ui安装Cloudflare SSL Certificate提示

/usr/bin/x-ui: line 1179: /root/.acme.sh/acme.sh: No such file or directory
[ERR] Default CA, Let'sEncrypt fail, script exiting...

[INF] Follow the steps below to complete the process: 
[INF] 1. Cloudflare Registered E-mail. 
[INF] 2. Cloudflare Global API Key. 
[INF] 3. The Domain Name. 
[INF] 4. Once the certificate is issued, you will be prompted to set the certificate for the panel (optional). 
[INF] 5. The script also supports automatic renewal of the SSL certificate after installation. 

Do you confirm the information and wish to proceed? [y/n] [Default y]: y
acme.sh could not be found. We will install it.
[INF] Installing acme.sh... 
  % Total    % Received % Xferd  Average Speed   Time    Time     Time  Current
                                 Dload  Upload   Total   Spent    Left  Speed
100  221k  100  221k    0     0  1217k      0 --:--:-- --:--:-- --:--:-- 1216k
[Sat May 24 07:19:38 UTC 2025] Installing from online archive.
[Sat May 24 07:19:38 UTC 2025] Downloading https://github.com/acmesh-official/acme.sh/archive/master.tar.gz
[Sat May 24 07:19:38 UTC 2025] Extracting master.tar.gz
[Sat May 24 07:19:38 UTC 2025] It is recommended to install crontab first. Try to install 'cron', 'crontab', 'crontabs' or 'vixie-cron'.
[Sat May 24 07:19:38 UTC 2025] We need to set a cron job to renew the certs automatically.
[Sat May 24 07:19:38 UTC 2025] Otherwise, your certs will not be able to be renewed automatically.
[Sat May 24 07:19:38 UTC 2025] Please add '--force' and try install again to go without crontab.
[Sat May 24 07:19:38 UTC 2025] ./acme.sh --install --force
[Sat May 24 07:19:38 UTC 2025] Pre-check failed, cannot install.
[INF] Installation of acme.sh succeeded. 
[DEG] Please set a domain name: 
Input your domain here: 你解析的域名
[DEG] Your domain name is set to: 你解析的域名 
[DEG] Please set the API key: 
Input your key here: 你的API
[DEG] Your API key is: 你的API
[DEG] Please set up registered email: 
Input your email here: 你的邮箱
[DEG] Your registered email address is: 你的邮箱 
/usr/bin/x-ui: line 1179: /root/.acme.sh/acme.sh: No such file or directory
[ERR] Default CA, Let'sEncrypt fail, script exiting... 

需要执行以下命令，安装cron后再次执行即可申请成功
sudo apt install cron