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 ('e6fe986d1c09d8a367cadea0bc5c3c06','0','3.18.109.154','Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; +claudebot@anthropic.c','1715628434','board.php?boardid=70&sid=4f2881f2236a30ac16776207733192a8','0','0','')
mysql error: Duplicate entry 'e6fe986d1c09d8a367cadea0bc5c3c06' for key 'PRIMARY'
mysql error number: 1062
mysql version: 5.6.13
php version: 7.4.33
Date: 13.05.2024 @ 21:27
Script: /board.php?boardid=70&sid=4f2881f2236a30ac16776207733192a8
Referer: http://wehrbauten.de/board.php?boardid=70&sid=4f2881f2236a30ac16776207733192a8