Hi @Pradeep
the second line is the answer of your first line.
Create one certificate with both domain names.
There is a check of your domain - https://check-your-website.server-daten.de/?q=chicagotraffictracker.com - ~~40 minutes old.
Your chain is wrong:
| Chain - duplicate certificates | 1 | CN=chicagotraffictracker.com | |
|---|---|---|---|
| 2 | CN=chicagotraffictracker.com | ||
| 3 | CN=Let's Encrypt Authority X3, O=Let's Encrypt, C=US |
The first certificate is duplicated.
But first create a correct certificate.