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`='54a0f7fc0544de9dcba8adf8e552bf18',`time`='1711704177',`ip`='3.91.245.93',`location`='/showthread.php?tid=4&pid=18&mode=threaded',`useragent`='claudebot',`location1`='3',`location2`='4',`nopermission`='0'