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 ('ff983e4f8dc9379b8b4c4d4811191cac','0','3.15.190.254','Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; +claudebot@anthropic.c','1745223245','report.php?postid=8788','0','0','')
mysql error: Duplicate entry 'ff983e4f8dc9379b8b4c4d4811191cac' for key 'PRIMARY'
mysql error number: 1062
mysql version: 8.0.11
php version: 5.6.10
Date: 21.04.2025 @ 10:14
Script: /report.php?postid=8788
Referer: http://gttempel.de/report.php?postid=8788