Issue SSL certificate notworking

After creating my new website then upload my website successfully.
I’ve tried many times to issue SLL certificate for activating https:// on my websites. But i got this errors . Please tell me how to fix it. Thank you guys

[08.21.2021_05-09-01] Trying to obtain SSL for: mysite.com and: www.mysite.com
[08.21.2021_05-09-01] /root/.acme.sh/acme.sh --issue -d mysite.com -d www.mysite.com --cert-file /etc/letsencrypt/live/mysite.com/cert.pem --key-file /etc/letsencrypt/live/mysite.com/privkey.pem --fullchain-file /etc/letsencrypt/live/mysite.com/fullchain.pem -w /home/mysite.com/public_html --server letsencrypt --force
[08.21.2021_05-09-12] Failed to obtain SSL for: mysite.com and: www.mysite.com
[08.21.2021_05-09-12] Trying to obtain SSL for: pmysite.com
[08.21.2021_05-09-15] Failed to obtain SSL, issuing self-signed SSL for: mysite.com
[08.21.2021_05-09-15] {‘myduyen08061998@gmail.com’: (554, b’5.7.1 myduyen08061998@gmail.com: Relay access denied’)}
[08.21.2021_05-09-15] Self signed SSL issued for mysite.com.

Same problem

Same problem