You will have received 4 notifications of new pages. There is nothing to be alarmed about. My email did not get hacked. It is simply an unanticipated and frustrating conflict with another useful plugin that notifies people of new posts. But when I installed a new plugin that creates a few standard checkout pages, you were all notified without me having the choice or ability to prevent that. Apologies. Ignore.
Heads up, this could actually happen again if I decide to install a different eCommerce plugin. I will attempt to not have you notified, but I’m not sure if I can deactivate the other conflicting plugin without losing all the associated data.