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`='cab38cdf29bb92b66b2a823b03b0cfb1',`time`='1711689555',`ip`='18.209.31.38',`location`='/showthread.php?mode=linear&tid=4&pid=27',`useragent`='claudebot',`location1`='3',`location2`='4',`nopermission`='0'