My Mentions update license has expired, a few months ago I upgraded my forum to 2.0.15. Before I buy the newest version I was wondering if it would take care of these problems, or if there was something else going on?

I'm getting this error when users click on the Mentions link in Profile Info:

Unknown column 'm.id_message' in 'field list'
File: ~www/forum/Sources/Mentions.php
Line: 606

Note: It appears that your database may require an upgrade. Your forum's files are currently at version SMF 2.0.15, while your database is at version 2.0.13. The above error might possibly go away if you execute the latest version of upgrade.php.

Also, users are reporting that the notification emails show the original name instead of the current one if someone had changed it.

These are minor issues but thanks for any advice.

This is a problem with another mod which can be easily fixed, I'd assist you as long as you hold a valid license.