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 ('2368a9014d56ece6d16eefb111c28ae7','0','18.117.153.38','Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; +claudebot@anthropic.c','1714981366','board.php?boardid=410&sid=b22fdf2aa1a049ab065aeeac089f1860','0','0','')
mysql error: Duplicate entry '2368a9014d56ece6d16eefb111c28ae7' for key 'PRIMARY'
mysql error number: 1062
mysql version: 5.6.13
php version: 7.4.33
Date: 06.05.2024 @ 09:42
Script: /board.php?boardid=410&sid=b22fdf2aa1a049ab065aeeac089f1860
Referer: http://wehrbauten.de/board.php?boardid=410&sid=b22fdf2aa1a049ab065aeeac089f1860