MySQL Error after module install

Just thought I'd let you know, the private message pages ("private/" and "private/inbox") don't work, all I get is this:
user warning: Unknown column 'pmi.message_id' in 'field list' query: SELECT pmi.message_id as id, pm.subject, pm.author, pmi.* FROM pm_message pm INNER JOIN pm_index pmi ON pm.message_id = pmi.message_id WHERE (pmi.recipient = 3) in /var/www/vhosts/yunar.com/httpdocs/drupal/modules/privatemsg/privatemsg.module on line 216.

The "private/new" page does seem to load correctly though.