IDW.community's SSL certificate expired today. I ran whynopadlock.com and got the answer.

TEST RESULTS:

SSL Certificate Info
Certificate Issuer
Let's Encrypt
Certificate Type
R3
Issued On
2023-01-21
Force HTTPS Your webserver is forcing the use of SSL.
Invalid Intermediate You have an invalid or missing intermediate (bundle) certificate. This may not break your padlock on all browsers, but will on others. Please contact your SSL Vendor for assistance with this error.
Domain Matching Your SSL certificate matches your domain name!
Protected Domains:
dev2.idw.community
idw.community
www.idw.community
Signature Your SSL certificate is using a sha256WithRSAEncryption signature!

Expiration Date Your SSL certificate is expired! (Expired on: 2023-04-21) You will want to renew your SSL certificate as soon as possible!

Protocols You currently have TLSv1 enabled.
This version of TLS is being phased out. This warning won't break your padlock, however if you run