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`='3354f5478b98a897e37b4dd958af8e68',`time`='1495810913',`ip`='54.166.242.76',`location`='/forum/showthread.php?tid=15836',`useragent`='CCBot/2.0 (http://commoncrawl.org/faq/)',`location1`='0',`location2`='15836',`nopermission`='0'