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 ('8b2cf3714c7e6dd9064820b544236bb0','0','52.14.253.170','Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; +claudebot@anthropic.c','1714257292','board.php?boardid=22&sid=29781692162a35ba02519b26cb7b93f7','0','0','')
mysql error: Duplicate entry '8b2cf3714c7e6dd9064820b544236bb0' for key 1
mysql error number: 1062
mysql version: 4.1.22-standard
php version: 5.3.29-1+hw8
Date: 27.04.2024 @ 18:34
Script: /wbb2/board.php?boardid=22&sid=29781692162a35ba02519b26cb7b93f7
Referer: