MyBB SQL Error

MyBB has experienced an internal SQL error and cannot continue.

SQL Error:
1062 - Duplicate entry '1748940050-3.144.45.228-0' for key 'datetime'
Query:
INSERT INTO mybb_lastvisitors (`ip`,`port`,`proxy`,`uid`,`username`,`datetime`,`referrer`,`url`,`info`) VALUES ('3.144.45.228','51552','5','0','','1748940050','','/showthread.php?pid=14152&tid=372','Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; +claudebot@anthropic.com)')