MyBB SQL Error

MyBB has experienced an internal SQL error and cannot continue.

SQL Error:
1146 - Table 'frndorg_forum.frnd_users' doesn't exist
Query:
SELECT s.sid, s.ip, s.time, s.location, u.uid, u.username, u.invisible, u.usergroup, u.displaygroup FROM frnd_users u LEFT JOIN frnd_sessions s ON (u.uid=s.uid) WHERE u.lastactive > 1510999235 ORDER BY u.username ASC, s.time DESC