To create an automatic redirection from http to https, please add the following code to your site’s Head-tag:

<script language="JavaScript"> if(window.location.protocol != 'https:') { location.href = location.href.replace("http://", "https://"); } </script>

Please see how to add a code to the head of your site on the following article:
http://hc.imcreator.com/en/articles/3128312-add-code-to-head-of-your-site