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`='2c476b1a903c2dd420ad5360a77ad773',`time`='1711670908',`ip`='54.163.62.42',`location`='/calendar.php?action=addevent&calendar=1&day=4&month=4&year=2017',`useragent`='claudebot',`location1`='0',`location2`='0',`nopermission`='0'