Hi Paul. Firstly - thankyou for the plugin! Looks great and such a nifty idea!
I've installed Achievements on a Buddypress site, and although I can set up Achievements nothing happens when a user completes the actions required to unlock it. I've set up several quick test Achievements but can't unlock them.
In the Admin panel if I go to Achievements/Users I get this error next to the Admin user:
Fatal error: Call to undefined function get_edit_user_link() in /home/agadmin/public_html/wp-content/plugins/achievements/includes/admin/class-dpa-users-list-table.php on line 262
I know you're very busy but if this is an easy fix or something you've seen before I'd be grateful for any pointers.