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 ('61bd6f367e9a28bb384f7152964eb297','0','3.17.6.75','Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; +claudebot@anthropic.c','1715050643','thread.php?goto=lastpost&threadid=1975&sid=3ff99e019fe4bc519c14e70be84b6192','0','0','')
mysql error: Duplicate entry '61bd6f367e9a28bb384f7152964eb297' for key 'PRIMARY'
mysql error number: 1062
mysql version: 5.6.13
php version: 7.4.33
Date: 07.05.2024 @ 04:57
Script: /thread.php?goto=lastpost&threadid=1975&sid=3ff99e019fe4bc519c14e70be84b6192
Referer: http://wehrbauten.de/thread.php?goto=lastpost&threadid=1975&sid=3ff99e019fe4bc519c14e70be84b6192