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 ('2e45607b11625f8d26b825fb39144dc9','0','3.141.8.247','Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; +claudebot@anthropic.c','1715435562','board.php?boardid=488&sid=830bb37138714a214d64c5b487fa540b','0','0','')
mysql error: Duplicate entry '2e45607b11625f8d26b825fb39144dc9' for key 'PRIMARY'
mysql error number: 1062
mysql version: 5.6.13
php version: 7.4.33
Date: 11.05.2024 @ 15:52
Script: /board.php?boardid=488&sid=830bb37138714a214d64c5b487fa540b
Referer: http://wehrbauten.de/board.php?boardid=488&sid=830bb37138714a214d64c5b487fa540b