How can I renew after this period has expired?

Help
1

I activated ssl in my apache server from the site certbot.eff.org
I got 90 days ...ok ..How can I renew after this period has expired?

2

Welcome to the community @mamadoteba

You should start by reading:
https://eff-certbot.readthedocs.io/en/stable/using.html#renewing-certificates

3

thank you mikemcq but ,renew free or paid

4

Let's Encrypt certs are free