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`='46f92d39f11f58a46b4ea4b6083efb9c',`time`='1711707488',`ip`='34.201.8.144',`location`='/calendar.php?action=addevent&calendar=1&day=29&month=11&year=2017',`useragent`='claudebot',`location1`='0',`location2`='0',`nopermission`='0'