MyBB SQL Error

MyBB has experienced an internal SQL error and cannot continue.

SQL Error:
1062 - Duplicate entry '1751041313-216.73.216.51-0' for key 'datetime'
Query:
INSERT INTO mybb_lastvisitors (`ip`,`port`,`proxy`,`uid`,`username`,`datetime`,`referrer`,`url`,`info`) VALUES ('216.73.216.51','30068','1','0','','1751041313','','/showthread.php?pid=28247&tid=13846','Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; +claudebot@anthropic.com)')