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 ('1f25255a0ff6bf9a9cbdc40c8e8a20c9','0','3.145.64.132','Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; +claudebot@anthropic.c','1714982470','thread.php?goto=lastpost&threadid=977&sid=1c4908dd9f1eb09a5c2458ed665c8565','0','0','')
mysql error: Duplicate entry '1f25255a0ff6bf9a9cbdc40c8e8a20c9' for key 'PRIMARY'
mysql error number: 1062
mysql version: 5.6.13
php version: 7.4.33
Date: 06.05.2024 @ 10:01
Script: /thread.php?goto=lastpost&threadid=977&sid=1c4908dd9f1eb09a5c2458ed665c8565
Referer: http://wehrbauten.de/thread.php?goto=lastpost&threadid=977&sid=1c4908dd9f1eb09a5c2458ed665c8565