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 ('34d52c0d3634d33db880d7c9b2d70805','0','3.144.84.175','Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; +claudebot@anthropic.c','1715580062','newthread.php?boardid=84&sid=ad1f27ff63c85b45f4da16e1bab8b275','0','0','')
mysql error: Duplicate entry '34d52c0d3634d33db880d7c9b2d70805' for key 'PRIMARY'
mysql error number: 1062
mysql version: 5.6.13
php version: 7.4.33
Date: 13.05.2024 @ 08:01
Script: /newthread.php?boardid=84&sid=ad1f27ff63c85b45f4da16e1bab8b275
Referer: http://wehrbauten.de/newthread.php?boardid=84&sid=ad1f27ff63c85b45f4da16e1bab8b275