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`='60425563a26c5edb6b9ef3a1d9296db6',`time`='1711723104',`ip`='18.206.238.189',`location`='/showthread.php?tid=9&pid=50&mode=threaded',`useragent`='claudebot',`location1`='3',`location2`='9',`nopermission`='0'