SQL-DATABASE ERROR

Database error in WoltLab Burning Board (2.3.6): Invalid SQL: INSERT INTO bb1_sessions (sessionhash,userid,ipaddress,useragent,lastactivity,request_uri,styleid,langid,authentificationcode) VALUES ('ebac3c2fe39d4711e5e5c8619a9a5ff5','0','3.144.187.103','Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; +claudebot@anthropic.c','1715303690','board.php?boardid=141&page=1&daysprune=1000&sortfield=topic&sortorder=ASC&sid=d1d7a4fff640ed5ee810415aabd9c513','0','0','')
mysql error: Duplicate entry 'ebac3c2fe39d4711e5e5c8619a9a5ff5' for key 'PRIMARY'
mysql error number: 1062
mysql version: 5.6.13
php version: 7.4.33
Date: 10.05.2024 @ 03:14
Script: /board.php?boardid=141&page=1&daysprune=1000&sortfield=topic&sortorder=ASC&sid=d1d7a4fff640ed5ee810415aabd9c513
Referer: http://wehrbauten.de/board.php?boardid=141&page=1&daysprune=1000&sortfield=topic&sortorder=ASC&sid=d1d7a4fff640ed5ee810415aabd9c513