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 ('6c2efea692ce32b070658b79b6915e1b','0','3.145.171.58','Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; +claudebot@anthropic.c','1715574689','board.php?boardid=274&page=1&daysprune=1000&sortfield=lastposttime&sortorder=ASC&sid=da1bb821f989e8386a9bc8ca15f41acd','0','0','')
mysql error: Duplicate entry '6c2efea692ce32b070658b79b6915e1b' for key 'PRIMARY'
mysql error number: 1062
mysql version: 5.6.13
php version: 7.4.33
Date: 13.05.2024 @ 06:31
Script: /board.php?boardid=274&page=1&daysprune=1000&sortfield=lastposttime&sortorder=ASC&sid=da1bb821f989e8386a9bc8ca15f41acd
Referer: http://wehrbauten.de/board.php?boardid=274&page=1&daysprune=1000&sortfield=lastposttime&sortorder=ASC&sid=da1bb821f989e8386a9bc8ca15f41acd