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 ('8358e35af7805abd781e6c8eb2d01551','0','18.216.11.146','Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; +claudebot@anthropic.c','1715784035','thread.php?threadid=7937&goto=lastpost&sid=c11cb8c81221257c9595dcff8893b241','0','0','')
mysql error: Duplicate entry '8358e35af7805abd781e6c8eb2d01551' for key 'PRIMARY'
mysql error number: 1062
mysql version: 5.7.42-log
php version: 5.6.40
Date: 15.05.2024 @ 16:40
Script: /thread.php?threadid=7937&goto=lastpost&sid=c11cb8c81221257c9595dcff8893b241
Referer: