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`='de78a2e3d78db4634a9d54f7c293d4b0',`time`='1711625982',`ip`='52.55.55.239',`location`='/calendar.php?action=addevent&calendar=1&day=29&month=9&year=2017',`useragent`='claudebot',`location1`='0',`location2`='0',`nopermission`='0'