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 ('703a0adb58906645b077ba7dd6d4d2fa','0','18.219.68.121','Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; +claudebot@anthropic.c','1745171465','attachment.php?attachmentid=9855','0','0','')
mysql error: Duplicate entry '703a0adb58906645b077ba7dd6d4d2fa' for key 'PRIMARY'
mysql error number: 1062
mysql version: 8.0.11
php version: 5.6.10
Date: 20.04.2025 @ 19:51
Script: /attachment.php?attachmentid=9855
Referer: http://gttempel.de/attachment.php?attachmentid=9855