I get this message:
Thank you! You have enabled a valid license. It looks like you are using this license within a multisite network. If you have 11 or more subsites, want network-level management, and/or require automatic updates, you need to upgrade to a multisite license. Read more about license options.
However I still get the following error (and please remove the obnoxious squid image that takes up a quarter of the screen height).
It looks like you’re using Event Tickets Plus, but the license key you supplied does not appear to be valid or is missing. Please review and fix so that you can always have access to our latest versions!
You can find your license keys by logging in to your account on theeventscalendar.com and you can enter them over on the settings page.
So far I’ve disconnected the license from your control panel a couple of times, no luck.