Hi,
I can see a blank page when I go to your website. This can mean that your website has a fatal PHP error. I temporarily turned on Error Reporting on your account, and I can see the following error.
Warning: require(/home/regisca2/public_html/wp-includes/class-wp-post-type.php): failed to open stream: No such file or directory in /home/regisca2/public_html/wp-settings.php on line 160
Fatal error: require(): Failed opening required '/home/regisca2/public_html/wp-includes/class-wp-post-type.php' (include_path='.:/opt/alt/php54/usr/share/pear:/opt/alt/php54/usr/share/php') in /home/regisca2/public_html/wp-settings.php on line 160
Assuming a plugin or theme isn't causing that, you might want to use a backup or a fresh WordPress download to restore it.