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`='83edbd22fc2ce8b835dada90a7fa0954',`time`='1710839503',`ip`='100.25.40.11',`location`='/showthread.php?tid=9&pid=51',`useragent`='claudebot',`location1`='3',`location2`='9',`nopermission`='0'