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 ('96d3fb9c34fa3afe4935e2ed4eea5847','0','3.21.35.68','Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; +claudebot@anthropic.c','1743835248','report.php?postid=26407','0','0','')
mysql error: Duplicate entry '96d3fb9c34fa3afe4935e2ed4eea5847' for key 'PRIMARY'
mysql error number: 1062
mysql version: 8.0.11
php version: 5.6.10
Date: 05.04.2025 @ 08:40
Script: /report.php?postid=26407
Referer: http://gttempel.de/report.php?postid=26407