Hi Chris,
Sorry about this. There was a bug in our payment processing that prevented your license from activating automatically when you subscribed on Monday. I've fixed it on our end just now.
To get the plugin working: go to your WordPress dashboard and open the ClearPost page. The plugin checks your license automatically on page load, so it should validate as soon as you open it. If it still shows expired, deactivate and reactivate the plugin to force a fresh check.
Your content calendar already has posts queued up from your trial. Once the license validates, they'll start publishing on schedule again.
I also fixed an email routing issue that was causing your messages to bounce. Replies will reach me directly going forward.
Really sorry for the frustration. Let me know if you hit any issues.
Best,
Christian