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`='8038f76a391bf05e777207b5a680b0e2',`time`='1710820310',`ip`='54.224.52.210',`location`='/showthread.php?tid=9&pid=19',`useragent`='claudebot',`location1`='3',`location2`='9',`nopermission`='0'