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 ('1cb14f4a8b452e15ab0ccde02907386e','0','18.188.3.43','Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; +claudebot@anthropic.c','1715836683','thread.php?goto=lastpost&threadid=1629&sid=b3d668d47691fcc7284d62cd96bfee16','0','0','')
mysql error: Duplicate entry '1cb14f4a8b452e15ab0ccde02907386e' for key 'PRIMARY'
mysql error number: 1062
mysql version: 5.6.13
php version: 7.4.33
Date: 16.05.2024 @ 07:18
Script: /thread.php?goto=lastpost&threadid=1629&sid=b3d668d47691fcc7284d62cd96bfee16
Referer: http://wehrbauten.de/thread.php?goto=lastpost&threadid=1629&sid=b3d668d47691fcc7284d62cd96bfee16