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 ('7c90e616bd436aa3dde20bcd1407d1c9','0','3.141.21.115','Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; +claudebot@anthropic.c','1715408126','newthread.php?boardid=55&sid=6c617be03489e13e7171e35d384e3d0b','0','0','')
mysql error: Duplicate entry '7c90e616bd436aa3dde20bcd1407d1c9' for key 'PRIMARY'
mysql error number: 1062
mysql version: 5.6.13
php version: 7.4.33
Date: 11.05.2024 @ 08:15
Script: /newthread.php?boardid=55&sid=6c617be03489e13e7171e35d384e3d0b
Referer: http://wehrbauten.de/newthread.php?boardid=55&sid=6c617be03489e13e7171e35d384e3d0b