SQL-DATABASE ERROR

Database error in WoltLab Burning Board (2.3.6): Invalid SQL: INSERT INTO bb2_sessions (sessionhash,userid,ipaddress,useragent,lastactivity,request_uri,styleid,langid,authentificationcode) VALUES ('712e7bb85d7adf9cf6a84168ec6125b1','0','18.217.7.117','Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; +claudebot@anthropic.c','1716268796','addreply.php?postid=414411&sid=4b1094767f06195ab9374fc522747ab2','0','0','')
mysql error: Duplicate entry '712e7bb85d7adf9cf6a84168ec6125b1' for key 1
mysql error number: 1062
mysql version: 4.1.22-standard
php version: 5.3.29-1+hw8
Date: 21.05.2024 @ 01:19
Script: /wbb2/addreply.php?postid=414411&sid=4b1094767f06195ab9374fc522747ab2
Referer: