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 ('a919a1b7dc346d4f83dfe5a1e0d73572','0','3.140.188.157','Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; +claudebot@anthropic.c','1715709417','board.php?boardid=281&page=1&daysprune=1000&sortfield=views&sortorder=ASC&sid=3fd24ff8e91720ffd83dbbf5553130df','0','0','')
mysql error: Duplicate entry 'a919a1b7dc346d4f83dfe5a1e0d73572' for key 'PRIMARY'
mysql error number: 1062
mysql version: 5.6.13
php version: 7.4.33
Date: 14.05.2024 @ 19:56
Script: /board.php?boardid=281&page=1&daysprune=1000&sortfield=views&sortorder=ASC&sid=3fd24ff8e91720ffd83dbbf5553130df
Referer: http://wehrbauten.de/board.php?boardid=281&page=1&daysprune=1000&sortfield=views&sortorder=ASC&sid=3fd24ff8e91720ffd83dbbf5553130df