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 ('1438fd0980f29b40dd6ba048a1ad0408','0','13.58.137.218','Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; +claudebot@anthropic.c','1714992546','thread.php?goto=lastpost&threadid=1382&sid=18fa3e00cd188411ec1f634cfdf4ed48','0','0','')
mysql error: Duplicate entry '1438fd0980f29b40dd6ba048a1ad0408' for key 'PRIMARY'
mysql error number: 1062
mysql version: 5.6.13
php version: 7.4.33
Date: 06.05.2024 @ 12:49
Script: /thread.php?goto=lastpost&threadid=1382&sid=18fa3e00cd188411ec1f634cfdf4ed48
Referer: http://wehrbauten.de/thread.php?goto=lastpost&threadid=1382&sid=18fa3e00cd188411ec1f634cfdf4ed48