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='54.159.30.26') WHERE t.threadid = '4369'
mysql error: Unknown column 'v.votemode' in 'on clause'
mysql error number: 1054
mysql version: 5.5.59-0+deb7u1-log
php version: 5.6.33
Date: 20.02.2018 @ 05:02
Script: /thread.php?postid=34263&sid=5b2ae9d515cb1af7fad5af4ab673a024
Referer: