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 ('baaa318907d6c908273d7ce4bd44116a','0','18.224.215.101','Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; +claudebot@anthropic.c','1715742716','board.php?boardid=723&sid=b062dcce59dc8bced8e2a83fbbd490ed','0','0','')
mysql error: Duplicate entry 'baaa318907d6c908273d7ce4bd44116a' for key 'PRIMARY'
mysql error number: 1062
mysql version: 5.6.13
php version: 7.4.33
Date: 15.05.2024 @ 05:11
Script: /board.php?boardid=723&sid=b062dcce59dc8bced8e2a83fbbd490ed
Referer: http://wehrbauten.de/board.php?boardid=723&sid=b062dcce59dc8bced8e2a83fbbd490ed