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`='4cbb1d397afb673d389e4ac033a13347',`time`='1710821539',`ip`='54.221.159.188',`location`='/showthread.php?tid=9&pid=21',`useragent`='claudebot',`location1`='3',`location2`='9',`nopermission`='0'