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`='ef1e4182d5237259629e7ff1617c93dc',`time`='1711626467',`ip`='18.206.12.31',`location`='/showthread.php?tid=9&pid=31',`useragent`='claudebot',`location1`='3',`location2`='9',`nopermission`='0'