I already had a PurchaseCode and the following message was displayed suddenly even though I set it on the setting screen of Hide My WP and nothing is displayed on the page of the management screen.
Purchase code for Hide My WP plugin either is empty or invalid. Please enter your purchase code or deactivate the plugin. Get it NOW! | Quick guide
I misunderstood that the license has expired and purchased additional licenses, but setting the new PurchaceCode does not change the situation. Both licenses seem to be invalid. Please let me know how to respond. In the first place, please tell me if I had to purchase additional licenses.