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 ('35333da20229117dc9874473a9874eab','0','18.216.123.120','Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; +claudebot@anthropic.c','1714798188','newthread.php?boardid=108&sid=727f45e7c6ae6f393ef19f5d359cea45','0','0','')
mysql error: Duplicate entry '35333da20229117dc9874473a9874eab' for key 'PRIMARY'
mysql error number: 1062
mysql version: 5.6.13
php version: 7.4.33
Date: 04.05.2024 @ 06:49
Script: /newthread.php?boardid=108&sid=727f45e7c6ae6f393ef19f5d359cea45
Referer: http://wehrbauten.de/newthread.php?boardid=108&sid=727f45e7c6ae6f393ef19f5d359cea45