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 ('478ee6e1da45e735e989cf3b2fe06be3','0','3.17.74.55','Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; +claudebot@anthropic.c','1715440262','thread.php?goto=lastpost&threadid=958&sid=c92207d32507aea0e574a75660fe63b8','0','0','')
mysql error: Duplicate entry '478ee6e1da45e735e989cf3b2fe06be3' for key 'PRIMARY'
mysql error number: 1062
mysql version: 5.6.13
php version: 7.4.33
Date: 11.05.2024 @ 17:11
Script: /thread.php?goto=lastpost&threadid=958&sid=c92207d32507aea0e574a75660fe63b8
Referer: