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 ('9b858d04613bf87bd2d42e494fadff55','0','18.116.51.117','Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; +claudebot@anthropic.c','1714740140','thread.php?goto=lastpost&threadid=1785&sid=71e196677300166001e0485cc0465839','0','0','')
mysql error: Duplicate entry '9b858d04613bf87bd2d42e494fadff55' for key 'PRIMARY'
mysql error number: 1062
mysql version: 5.6.13
php version: 7.4.33
Date: 03.05.2024 @ 14:42
Script: /thread.php?goto=lastpost&threadid=1785&sid=71e196677300166001e0485cc0465839
Referer: