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`='91fe3386b416e2cd45071f8d9a4d2a97',`time`='1493137751',`ip`='23.20.219.0',`location`='/forum/member.php?action=profile&uid=253171',`useragent`='CCBot/2.0 (http://commoncrawl.org/faq/)',`location1`='0',`location2`='0',`nopermission`='0'