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 ('4c6d155ce7ec8b36a402f00a98b19852','0','13.58.60.192','Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; +claudebot@anthropic.c','1715217542','board.php?boardid=262&daysprune=1000&sortfield=lastposttime&sortorder=DESC&sid=f0598e6c3455c2e55e6b29c86aac7221&page=51','0','0','')
mysql error: Duplicate entry '4c6d155ce7ec8b36a402f00a98b19852' for key 'PRIMARY'
mysql error number: 1062
mysql version: 10.6.15-MariaDB-cll-lve-log
php version: 5.6.40
Date: 09.05.2024 @ 01:19
Script: /board.php?boardid=262&daysprune=1000&sortfield=lastposttime&sortorder=DESC&sid=f0598e6c3455c2e55e6b29c86aac7221&page=51
Referer: http://www.biker-community.com/board.php?boardid=262&daysprune=1000&sortfield=lastposttime&sortorder=DESC&sid=f0598e6c3455c2e55e6b29c86aac7221&page=51