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 ('639901d9eae2431ca6118905f796eccc','0','3.15.10.117','Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; +claudebot@anthropic.c','1734857771','thread.php?goto=nextnewest&threadid=2067','0','0','')
mysql error: Duplicate entry '639901d9eae2431ca6118905f796eccc' for key 'PRIMARY'
mysql error number: 1062
mysql version: 8.0.11
php version: 5.6.10
Date: 22.12.2024 @ 09:56
Script: /thread.php?goto=nextnewest&threadid=2067
Referer: http://gttempel.de/thread.php?goto=nextnewest&threadid=2067