MyBB SQL Error

MyBB has experienced an internal SQL error and cannot continue.

SQL Error:
1062 - Duplicate entry '1749523563-216.73.216.44-0' for key 'datetime'
Query:
INSERT INTO mybb_lastvisitors (`ip`,`port`,`proxy`,`uid`,`username`,`datetime`,`referrer`,`url`,`info`) VALUES ('216.73.216.44','39074','1','0','','1749523563','','/showthread.php?action=newpost&tid=13998','Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; +claudebot@anthropic.com)')