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 ('03a9b429faf4dfb089ea4783a1f9ab5f','0','3.135.186.226','Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; +claudebot@anthropic.c','1715872149','thread.php?goto=lastpost&threadid=1321&sid=c0746d25b8ebf493801a417d928d575a','0','0','')
mysql error: Duplicate entry '03a9b429faf4dfb089ea4783a1f9ab5f' for key 'PRIMARY'
mysql error number: 1062
mysql version: 5.6.13
php version: 7.4.33
Date: 16.05.2024 @ 17:09
Script: /thread.php?goto=lastpost&threadid=1321&sid=c0746d25b8ebf493801a417d928d575a
Referer: http://wehrbauten.de/thread.php?goto=lastpost&threadid=1321&sid=c0746d25b8ebf493801a417d928d575a