OpenVPN

[polaris235]

Hi every one.
I had softether on an ubuntu server and I got SSL from letsencrypt with this commannd: sudo certbot certonly --standalone --preferred-challenges http --agree-tos --email xx.xxxxxxx@gmail.com -d xxxx.xxxxxxxxx.com

and every thing worked well.
now I have changed previous server with new one and also transfer vpnserver.config file to new server and got SSL for the same domain. but now OPENVPN doesn't work.
SSTP and L2TP still working.
what is the problem?
thank you

[solo]

Try a newly generated OpenVPN config. If unresolved, post as code the client's error log.