Renew a DO space SSL

I have created a DO space with a custom sub-domain, I chose that DO will manage and create the SSL, everything was setup in seconds, and after some months the certificate has expired, And for my bad in a demo day, anyway, I thought that DO automatically renews the certificates he creates, I checked every part of the control panel, and there is in’t a way to renew it (nor manually nor automatically), the only place that gave some useful in formations is in (cloud.digitalocean.com/account/security), I found the name of my certificate with expries at (2 days ago), With a disabled delete button, So how can I renew it, and how to make DO automatically renew his certificates, and if it’s not possible then why suggesting to create it in the first place ???