The free ssl certificate I installed on a WordPress site using WordPress letsencrypt plugin expired and this shut down the site entirely for some days. I uninstalled the certificate and deleted it, yet didn’t fix the problem.
Problem was fixed after hosting company removed the redirection from the database.
If you want to integrate free ssl, pls use sslforfree.com instead of the WpEncrypt plugin. SSLForFree will notify you when the certificate is about to expire.