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`='472978d217fa1a36411f4ea72e680c5c',`time`='1711679810',`ip`='3.90.33.254',`location`='/showthread.php?mode=linear&tid=3&pid=5',`useragent`='claudebot',`location1`='3',`location2`='3',`nopermission`='0'