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`='0e1efd3567ce1f49064a8eb83abd1864',`time`='1711690722',`ip`='35.175.113.125',`location`='/calendar.php?action=addevent&calendar=1&day=4&month=3&year=2017',`useragent`='claudebot',`location1`='0',`location2`='0',`nopermission`='0'