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`='84563cc814ebee9ac13a04defb6a2f38',`time`='1711633347',`ip`='54.163.62.42',`location`='/showthread.php?tid=4&pid=16',`useragent`='claudebot',`location1`='3',`location2`='4',`nopermission`='0'