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='54.90.119.59') WHERE t.threadid = '2371'
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: 19.02.2018 @ 15:04
Script: /thread.php?threadid=2371&page=2&sid=48aabfd1cb2c6c72fe7532f4b98e3d19
Referer: