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`='be55bbbd4ceb4f7f07d7087887f83729',`time`='1711710943',`ip`='35.173.215.152',`location`='/calendar.php?action=dayview&calendar=1&year=2017&month=7&day=28',`useragent`='claudebot',`location1`='0',`location2`='0',`nopermission`='0'