once logged in pages viewed as https

I just went to your site, and it doesn't seem like you have a valid SSL certificate on your site. If users are being redirected to https, they'd see warnings and other errors that they'd have to pass through.

As to the issue, if you're only seeing it when logging in with Joomla credentials, the problem is that you've likely enabled the "Encrypt login form" option in the SCLogin module. That setting will intentionally redirect the user to the https version of your site so that their credentials are encrypted. Since you don't have an SSL certificate, you should disable that.

If you're having the issue with social network logins, please let us know what network seems to have that happen.

Thanks,
Alex