How can I solve “We were unable to obtain a LetsEn

2019-08-26 10:37发布

问题:

My server using forge laravel(https://forge.laravel.com)

When I click obtain certificate button to add new certicate like this :

It does not work. There exist error like this :

We were unable to obtain a LetsEncrypt SSL certificate on your server

The full error like this :

How can I solve this error?