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 ('a2d7dc111466d1b216e784891759c3ea','0','52.14.94.195','Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; +claudebot@anthropic.c','1744973883','thread.php?goto=nextnewest&threadid=2304','0','0','')
mysql error: Duplicate entry 'a2d7dc111466d1b216e784891759c3ea' for key 'PRIMARY'
mysql error number: 1062
mysql version: 8.0.11
php version: 5.6.10
Date: 18.04.2025 @ 12:58
Script: /thread.php?goto=nextnewest&threadid=2304
Referer: http://gttempel.de/thread.php?goto=nextnewest&threadid=2304