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`='91d033110d2d976f4156e240e82b452d',`time`='1711639798',`ip`='35.169.107.177',`location`='/showthread.php?tid=4&pid=78&mode=threaded',`useragent`='claudebot',`location1`='3',`location2`='4',`nopermission`='0'