Let's encrypt error

I installed jitsi on a cloud server and I am getting this error can anyone help me, please

I checked your server; you can find your result at

https://check-your-website.server-daten.de/?q=

replace ‘yoururl.com’ by your real url because of course I completely respect your privacy :slight_smile:

and it says that port 80 is not open on your setup, so use your Plesk console or whatever to do that; it’s generally necessary for Let’sEncrypt to work.

By the way, you could probably have learned as much if you had openen the log at /var/log:letsencrypt as said in the screenshot you posted. You can generally find better help for these problem on the let’sEncrypt forum.