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`='2bc36d07b515663f4f6cc3f35859faeb',`time`='1711725576',`ip`='54.144.219.156',`location`='/showthread.php?tid=9&action=lastpost',`useragent`='claudebot',`location1`='3',`location2`='9',`nopermission`='0'