SQL-DATABASE ERROR

Database error in WoltLab Burning Board (2.3.6 pl2): Invalid SQL: INSERT INTO bb1_sessions (sessionhash,userid,ipaddress,useragent,lastactivity,request_uri,styleid,langid,authentificationcode) VALUES ('71aed75391caeab7d9297f7f3c119d89','0','3.133.136.95','Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; +claudebot@anthropic.c','1735267208','thread.php?goto=nextnewest&threadid=1234','0','0','')
mysql error: Duplicate entry '71aed75391caeab7d9297f7f3c119d89' for key 'PRIMARY'
mysql error number: 1062
mysql version: 8.0.11
php version: 5.6.10
Date: 27.12.2024 @ 03:40
Script: /thread.php?goto=nextnewest&threadid=1234
Referer: http://gttempel.de/thread.php?goto=nextnewest&threadid=1234