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`='ff7cdc3ec99df789b84db463bca19b14',`time`='1711629998',`ip`='44.220.41.140',`location`='/calendar.php?action=addevent&calendar=1&day=21&month=9&year=2017',`useragent`='claudebot',`location1`='0',`location2`='0',`nopermission`='0'