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 ('9497e2a75adf485fd5d4ee9d7e543441','0','18.217.228.35','Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; +claudebot@anthropic.c','1715403917','profile.php?userid=156&sid=16b37286b305abb56ef3cda7569f562c','0','0','')
mysql error: Duplicate entry '9497e2a75adf485fd5d4ee9d7e543441' for key 'PRIMARY'
mysql error number: 1062
mysql version: 5.6.13
php version: 7.4.33
Date: 11.05.2024 @ 07:05
Script: /profile.php?userid=156&sid=16b37286b305abb56ef3cda7569f562c
Referer: http://wehrbauten.de/profile.php?userid=156&sid=16b37286b305abb56ef3cda7569f562c