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 ('8b756a8e4393a40a6d79aedad0c8d169','0','3.16.54.63','Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; +claudebot@anthropic.c','1715365996','board.php?boardid=262&daysprune=1000&sortfield=lastposttime&sortorder=DESC&sid=564e8cc85fea6e0e0cca9c791203a1e2&page=9','0','0','')
mysql error: Duplicate entry '8b756a8e4393a40a6d79aedad0c8d169' for key 'PRIMARY'
mysql error number: 1062
mysql version: 10.6.15-MariaDB-cll-lve-log
php version: 5.6.40
Date: 10.05.2024 @ 18:33
Script: /board.php?boardid=262&daysprune=1000&sortfield=lastposttime&sortorder=DESC&sid=564e8cc85fea6e0e0cca9c791203a1e2&page=9
Referer: http://www.biker-community.com/board.php?boardid=262&daysprune=1000&sortfield=lastposttime&sortorder=DESC&sid=564e8cc85fea6e0e0cca9c791203a1e2&page=9