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`='e84429569eea67a8f6d735f1bfc08e42',`time`='1710825631',`ip`='54.172.169.199',`location`='/showthread.php?tid=9&pid=29&mode=threaded',`useragent`='claudebot',`location1`='3',`location2`='9',`nopermission`='0'