Don’t forget to update

I wasted a couple hours trying to fix my website this morning. It took me half an hour to realize that my domain name registrar has expired. After renew my domain name, it was still not connecting. I suspected a problem from letsencrypt. I tried to run a dry run on renewal but got another problem. Eventually after wasting two hours, just running an apt upgrade solve everything. A lesson learned to always keep thing up to date!