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 ('ef9af54c6bdf36b91c0ef0d41fd10539','0','18.116.10.48','Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; +claudebot@anthropic.c','1734862184','thread.php?goto=nextnewest&threadid=2099','0','0','')
mysql error: Duplicate entry 'ef9af54c6bdf36b91c0ef0d41fd10539' for key 'PRIMARY'
mysql error number: 1062
mysql version: 8.0.11
php version: 5.6.10
Date: 22.12.2024 @ 11:09
Script: /thread.php?goto=nextnewest&threadid=2099
Referer: http://gttempel.de/thread.php?goto=nextnewest&threadid=2099