SQL-DATABASE ERROR

Database error in WoltLab Burning Board (2.3.6): Invalid SQL: SELECT t.*, v.id AS isvoted FROM bb1_threads t LEFT JOIN bb1_votes v ON (v.id=t.threadid AND v.votemode=2 AND v.ipaddress='3.235.22.104') WHERE t.threadid = '68445'
mysql error: Out of resources when opening file './usr_web1_2/bb1_votes.MYD' (Errcode: 24)
mysql error number: 23
mysql version: 5.5.47-0+deb6u1-log
php version: 5.3.3-7+squeeze29
Date: 03.07.2020 @ 15:40
Script: /thread.php?postid=1026024
Referer: