SSL is not enabled yet?..

Replies: 0

I’m pressed green button “Go head..” but still have message “SSL is not enabled yet”.
Debug said:

** Really Simple SSL debug mode **
** Detecting configuration **
plugin version: 2.4.3
Opening testpage to check for ssl: https://www.mysite.com/wp-content/plugins/really-simple-ssl/ssl-test-page.php
SSL test page loaded successfully
No server variable detected
ssl type: NA
ssl not enabled, show notice

I have W3 Total Cache and CloudFlare enabled, all caches flushed.