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`='59736a8f8c36f860d1b72184ce352468',`time`='1711692668',`ip`='35.175.113.125',`location`='/showthread.php?mode=linear&tid=9&pid=39',`useragent`='claudebot',`location1`='3',`location2`='9',`nopermission`='0'