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 ('f426c7259a34f252fa9e5959e76978c5','0','3.137.168.234','Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; +claudebot@anthropic.c','1745053099','report.php?postid=34376','0','0','')
mysql error: Duplicate entry 'f426c7259a34f252fa9e5959e76978c5' for key 'PRIMARY'
mysql error number: 1062
mysql version: 8.0.11
php version: 5.6.10
Date: 19.04.2025 @ 10:58
Script: /report.php?postid=34376
Referer: http://gttempel.de/report.php?postid=34376