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`='332cfa5c6137e51c3239beb4c7db5c1a',`time`='1711690833',`ip`='100.26.135.252',`location`='/calendar.php?action=dayview&calendar=1&year=2017&month=6&day=9',`useragent`='claudebot',`location1`='0',`location2`='0',`nopermission`='0'