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`='22c0d445bcd21e1df3c9a83e4cf9496a',`time`='1711698190',`ip`='54.224.100.102',`location`='/showthread.php?mode=threaded&tid=4&pid=66',`useragent`='claudebot',`location1`='3',`location2`='4',`nopermission`='0'