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`='a11f8221742340840f5df9517f00529d',`time`='1711703637',`ip`='34.205.2.207',`location`='/showthread.php?tid=2&pid=11',`useragent`='claudebot',`location1`='3',`location2`='2',`nopermission`='0'