Some free hosting provider not support SSL. If some visitor try to visit https://yourdomain then show
SSL not enable
You can redirect your https visitor to http using .htaccess file
RewriteEngine On
RewriteCond %{HTTPS} on
RewriteRule (.*) http://%{HTTP_HOST}%{REQUEST_URI}
or
Options +FollowSymLinksRewriteEngine On
RewriteCond %{ENV:HTTPS} on
RewriteRule (.*) http://%{HTTP_HOST}%{REQUEST_URI} [R=301,L]
or
<VirtualHost *:443>
ServerName www.example.com
# ... SSL configuration goes here
Redirect "https://www.example.com/" "http://www.example.com/"
</VirtualHost>
<VirtualHost *:80>
ServerName www.example.com
# ...
</VirtualHost>