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 ('595c56cb01a876465cff16f07464a7a6','0','18.191.86.218','Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; +claudebot@anthropic.c','1743838285','attachment.php?attachmentid=5143','0','0','')
mysql error: Duplicate entry '595c56cb01a876465cff16f07464a7a6' for key 'PRIMARY'
mysql error number: 1062
mysql version: 8.0.11
php version: 5.6.10
Date: 05.04.2025 @ 09:31
Script: /attachment.php?attachmentid=5143
Referer: http://gttempel.de/attachment.php?attachmentid=5143