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`='7b98178cfe84ca9ceaddc2a04214a46e',`time`='1501180396',`ip`='54.224.108.189',`location`='/forum/showthread.php?tid=15836',`useragent`='CCBot/2.0 (http://commoncrawl.org/faq/)',`location1`='0',`location2`='15836',`nopermission`='0'