My configuration is different from yours as I am using HTTPS only. However, I would recommend changing the Firewall profile to No Profile first to test. Also, check the "Pass host header" check box. I had to sign my TLS cert with www.mydomain.com in order for https://mydomain .com in order to get https to work. Finally, my site path is set to /. I noticed in your log that there is an error for /var/www/REF_RevFroInterPlain. You might need to setup a site path route.
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