[Bug] Ubuntu Server Install Problem

[RodinaKPM]

I`m trying to install CasaOS on a Ubuntu server, however curl refuses to connect to get.casaos.io because the certificate has expired.

curl -fsSL https://get.casaos.io | sudo bash

curl: (60) SSL certificate problem: certificate has expired
More details here: https://curl.se/docs/sslcerts.html

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.

[p2u11]

Perhaps your root certificates are out of date, the clock is set incorrectly, or it’s simply a temporary issue on their end.
try this

sudo apt-get update
sudo apt-get install --reinstall ca-certificates
sudo update-ca-certificates

or try using --insecure flag

curl -fsSL --insecure https://get.casaos.io/ | sudo bash