Symptoms:
On occasions when running the /usr/local/cpanel/bin/autossl_check script on a server where they have set up their AutoSSL provider to Let's Encrypt, you might run into an issue when AutoSSL installation fails with the following error:
Certificate installation error: Can't locate object method "install_certificate" via package "Cpanel::SSL::Auto::Provider::LetsEncrypt" at /var/cpanel/perl/Cpanel/SSL/Auto/Provider/LetsEncrypt.pm line ###.
Workaround:
The issue is usually related to a corrupt or outdated cpanel-letsencrypt package and you would be able to resolve this issue by simply running the following command to install the latest package instead:
/usr/local/cpanel/scripts/install_lets_encrypt_autossl_provider