MyBB SQL Error

MyBB has experienced an internal SQL error and cannot continue.

SQL Error:
1062 - Duplicate entry '0' for key 'uid'
Query:
REPLACE INTO mybb_sessions SET `uid`='0',`sid`='d9a27f52c750f0cbd079d2d0959f7fe9',`time`='1711696089',`ip`='54.204.142.235',`location`='/showthread.php?mode=linear&tid=9&pid=54',`useragent`='claudebot',`location1`='3',`location2`='9',`nopermission`='0'