Paid about a month ago but now saying expired...I thought it was for the year. wondering how this works?
-and troubleshooting FAQ https://forums.adobe.com/thread/1962238
There is the subscription paid monthly,
subscription paid yearly,
and the standalone license that you buy once per major version release.
What is the exact wording of the expiration message?
If you bought the standalone version, the message is probably telling you about the Lightroom Mobile trial that is about to expire (subscription required).