Good afternoon After I changed Overview from Flexible to Full, the site stopped opening. I returned it back, but now the same page opens as in the next tab. Please tell me what to do?
Flexible means the connection from Cloudflare to your origin uses HTTP so is unencrypted. Full uses HTTPS (encrypted) so you need to ensure your origin accepts SSL connections on port 443 and has an SSL certificate. Full (strict) should really be used to ensure that SSL certificate is signed, within date and otherwise valid.
Check your origin is set up correctly for secure connections.
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