MyBB SQL Error

MyBB has experienced an internal SQL error and cannot continue.

SQL Error:
1062 - Duplicate entry '0' for key 'location1'
Query:
REPLACE INTO mybb_sessions SET `uid`='0',`sid`='b3e58fdfea8c97e1c486a15b17b0c2ba',`time`='1711687164',`ip`='54.226.68.181',`location`='/calendar.php?action=addevent&calendar=1&day=19&month=8&year=2017',`useragent`='claudebot',`location1`='0',`location2`='0',`nopermission`='0'