Le certificat SSL de Let's Encrypt ne se renouvelle pas

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Problème résolu en lisant ceci

Set up HTTPS support with Let's Encrypt

This is a guide for enabling HTTPS on an existing Discourse installation using Let’s Encrypt. It assumes prior installation without HTTPS enabled. Required user level: System Administrator This guide is only for existing installs where HTTPS is not enabled. Following the official setup guide automatically enables HTTPS by default. So you’d like to add https to your Discourse absolutely free, courtesy of our friends at Let’s Encrypt? I…