SQL-DATABASE ERROR

Database error in WoltLab Burning Board (2.3.6): Invalid SQL: INSERT INTO bb1_sessions (sessionhash,userid,ipaddress,useragent,lastactivity,request_uri,styleid,langid,authentificationcode) VALUES ('8a1ac8cb0e12cc4c6c3e66ead88acddc','0','3.134.78.106','Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; +claudebot@anthropic.c','1715189323','newthread.php?boardid=465&sid=6d50aed9ed195f0a9560418475e2ca21','0','0','')
mysql error: Duplicate entry '8a1ac8cb0e12cc4c6c3e66ead88acddc' for key 'PRIMARY'
mysql error number: 1062
mysql version: 5.6.13
php version: 7.4.33
Date: 08.05.2024 @ 19:28
Script: /newthread.php?boardid=465&sid=6d50aed9ed195f0a9560418475e2ca21
Referer: http://wehrbauten.de/newthread.php?boardid=465&sid=6d50aed9ed195f0a9560418475e2ca21