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`='cf1bf2baefb4c45e7c433c7ac3947823',`time`='1711664458',`ip`='54.210.83.20',`location`='/calendar.php?action=addevent&calendar=1&day=18&month=5&year=2017',`useragent`='claudebot',`location1`='0',`location2`='0',`nopermission`='0'