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`='e207741550a95b2e5c14ed4868b4af23',`time`='1711721720',`ip`='54.234.146.26',`location`='/calendar.php?action=dayview&calendar=1&year=2017&month=5&day=22',`useragent`='claudebot',`location1`='0',`location2`='0',`nopermission`='0'