The plugin is designed to work on http or https sites, without showing any warnings. On https sites, assets should also be loading as https.
If you can provide us with an example URL, we’d be happy to take a look at the issue to see what may be causing this. In some cases in the past, we’ve seen some theme templates that have older instances of the AddThis script already included.
Thanks for your fast reply. I already removed your plugin from my site and replaced it with another one. But I will change the rating.
