Plugin does not work after HTTPS Redirection

Usually the wp users use the plugins to redirect the sites to HTTPS.

However they forgot to replace the protocol of the url. If you followed this scenario, you need to do the steps below.

1. Deactivate WP Fastest Cache
2. Go to /wp-admin/options-general.php and Replace http with https


3. Activate WP Fastest Cache
4. Save settings