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 ('31e4d98bc23eadd1c606074d51981c5c','0','13.58.216.74','Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; +claudebot@anthropic.c','1715776625','thread.php?threadid=2188&goto=lastpost&sid=e2029f96e9a4878986de238caf435773','0','0','')
mysql error: Duplicate entry '31e4d98bc23eadd1c606074d51981c5c' for key 'PRIMARY'
mysql error number: 1062
mysql version: 5.6.13
php version: 7.4.33
Date: 15.05.2024 @ 14:37
Script: /thread.php?threadid=2188&goto=lastpost&sid=e2029f96e9a4878986de238caf435773
Referer: http://wehrbauten.de/thread.php?threadid=2188&goto=lastpost&sid=e2029f96e9a4878986de238caf435773