Error certificate

[mvch.he...@gmail.com]

My friends, i need help with this

curl failed to verify the legitimacy of the server and therefore could not
establish a secure connection to it. To learn more about this situation and
how to fix it, please visit the web page mentioned above.
.curl: (60) SSL certificate problem: self signed certificate in certificate chain
More details here: https://curl.haxx.se/docs/sslcerts.html

I am using lets encrypt. How i can correct?

What would be?

Thanks

[detlef Köppel]

LetsEncrypt requires IPV6 activation.
Test via root if ipv 6 has been enabled

enable_ipv6

The IPV 6 address must then be entered in the DNS of the domain
Domain.tld AAAA 123::123:123:.... > IPV 6 address

Maybe this already solves the problem.

Detlef