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 ('81a694d7dad2f58c36cf7661d0c1b698','0','3.21.44.115','Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; +claudebot@anthropic.c','1734857943','report.php?postid=33100','0','0','')
mysql error: Duplicate entry '81a694d7dad2f58c36cf7661d0c1b698' for key 'PRIMARY'
mysql error number: 1062
mysql version: 8.0.11
php version: 5.6.10
Date: 22.12.2024 @ 09:59
Script: /report.php?postid=33100
Referer: http://gttempel.de/report.php?postid=33100