SQL-DATABASE ERROR

Database error in WoltLab Burning Board: Invalid SQL: SELECT bb611_sessions.userid, username, groupid, invisible FROM bb611_sessions LEFT JOIN bb611_users USING (userid) WHERE bb611_sessions.lastactivity >= '1660086011' ORDER BY username ASC
mysql error: Out of resources when opening file './usr_web47_1/bb611_users.MYD' (Errcode: 24)
mysql error number: 23
Date: 10.08.2022 @ 11:00
Script: /index.php?sid=994f30c0ef2def35f31b321e7fd6e3ac
Referer: