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 ('19be687c42534f76b0df076024d0321d','0','18.119.157.241','Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; +claudebot@anthropic.c','1735266713','addreply.php?threadid=1234','0','0','')
mysql error: Duplicate entry '19be687c42534f76b0df076024d0321d' for key 'PRIMARY'
mysql error number: 1062
mysql version: 8.0.11
php version: 5.6.10
Date: 27.12.2024 @ 03:31
Script: /addreply.php?threadid=1234
Referer: http://gttempel.de/addreply.php?threadid=1234