Hah, I’m start to record video with my comments to show you what exactly happens but when I’m executed your plugin it said ‘0 post deleted’ as it should. No more deleting of something without stopping! /
I don’t know where exactly was a problem. May be you already fixed it, may be it just a miracle, and may be it because of setting correct timezone in php.ini, which allow date filter of the plugin to work properly.
By the way, we can mark this topic as solved, if I notice something strange again I’ll tell you 😉