Disabling WP Super Cache plugin does not stop it from working.
Your webpage is still produced by cache.
I know you are using WP Super Cache, because I look at your page source and saw the cache comment at the end of your website.
Clear your cache content and then disable caching which could be found in first tab of it’s settings.
Keeping cache disabled, you can proceed to check for plugin conflict, by disabling one plugin at a time.