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 ('3e920f48a360be7081b79ef2421cd9d1','0','3.14.15.94','Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; +claudebot@anthropic.c','1714864891','thread.php?goto=lastpost&threadid=2039&sid=e234a5b777df67a4f6cc6fa37f050a30','0','0','')
mysql error: Duplicate entry '3e920f48a360be7081b79ef2421cd9d1' for key 'PRIMARY'
mysql error number: 1062
mysql version: 5.6.13
php version: 7.4.33
Date: 05.05.2024 @ 01:21
Script: /thread.php?goto=lastpost&threadid=2039&sid=e234a5b777df67a4f6cc6fa37f050a30
Referer: http://wehrbauten.de/thread.php?goto=lastpost&threadid=2039&sid=e234a5b777df67a4f6cc6fa37f050a30